SlideShare a Scribd company logo
1 of 2
Download to read offline
ใบงานที่ 4
ชื่อ.....................................................................................ชั้น.....................เลขที่...........
1.

จงหาโดเมนและเรนจ์ของความสัมพันธ์ต่อไปนี้
1) r

(x, y) y

x

2

.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
2) r

(x, y) y

x2

1

.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
3) r

(x, y) y

9

x2

.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.............................................................................................................................. .......
............................................................................................................................ .........
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
2

4) r

5x 2

(x, y) y

9

.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
2. จงหาโดเมนและเรนจ์ของความสัมพันธ์ต่อไปนี้ โดยพิจารณาจากกราฟของความสัมพันธ์
1) r

(x, y) y

x

2

.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
................................................................................................................................. ....
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
2) r

(x, y) y

x2

1

.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.....................................................................................................................................
.......................................................................................................................... ...........
.....................................................................................................................................

More Related Content

What's hot

04051000126
0405100012604051000126
04051000126Lyly Le
 
Format styleguide-reprt
Format styleguide-reprtFormat styleguide-reprt
Format styleguide-reprtJarbie Manlabe
 
แบบฝึกเสริมทักษะที่ 2.3 เขียนแนะนำตนเอง
แบบฝึกเสริมทักษะที่ 2.3 เขียนแนะนำตนเองแบบฝึกเสริมทักษะที่ 2.3 เขียนแนะนำตนเอง
แบบฝึกเสริมทักษะที่ 2.3 เขียนแนะนำตนเองRung Kru
 
แบบฝึกเสริมทักษะที่ 2.1 เขียนเรื่องจากคำ
แบบฝึกเสริมทักษะที่ 2.1  เขียนเรื่องจากคำแบบฝึกเสริมทักษะที่ 2.1  เขียนเรื่องจากคำ
แบบฝึกเสริมทักษะที่ 2.1 เขียนเรื่องจากคำRung Kru
 
แบบฝึกเสริมทักษะที่ 2.1 เขียนเรื่องจากคำ
แบบฝึกเสริมทักษะที่ 2.1  เขียนเรื่องจากคำแบบฝึกเสริมทักษะที่ 2.1  เขียนเรื่องจากคำ
แบบฝึกเสริมทักษะที่ 2.1 เขียนเรื่องจากคำRung Kru
 
SDSU College of Extended Studies Consulting Report
SDSU College of Extended Studies Consulting ReportSDSU College of Extended Studies Consulting Report
SDSU College of Extended Studies Consulting ReportCameron Smurthwaite MSc, MBA
 
99 cue card for ielts speaking by ielts fighter
99 cue card for ielts speaking by ielts fighter99 cue card for ielts speaking by ielts fighter
99 cue card for ielts speaking by ielts fighterhunglion
 
Đề tài: Phân tích hoạt động phân phối sản phẩm của công ty TNHH Bao bì sài gò...
Đề tài: Phân tích hoạt động phân phối sản phẩm của công ty TNHH Bao bì sài gò...Đề tài: Phân tích hoạt động phân phối sản phẩm của công ty TNHH Bao bì sài gò...
Đề tài: Phân tích hoạt động phân phối sản phẩm của công ty TNHH Bao bì sài gò...Viết thuê trọn gói ZALO 0934573149
 

What's hot (10)

Html5 notes for professionals
Html5 notes for professionalsHtml5 notes for professionals
Html5 notes for professionals
 
04051000126
0405100012604051000126
04051000126
 
Format styleguide-reprt
Format styleguide-reprtFormat styleguide-reprt
Format styleguide-reprt
 
แบบฝึกเสริมทักษะที่ 2.3 เขียนแนะนำตนเอง
แบบฝึกเสริมทักษะที่ 2.3 เขียนแนะนำตนเองแบบฝึกเสริมทักษะที่ 2.3 เขียนแนะนำตนเอง
แบบฝึกเสริมทักษะที่ 2.3 เขียนแนะนำตนเอง
 
แบบฝึกเสริมทักษะที่ 2.1 เขียนเรื่องจากคำ
แบบฝึกเสริมทักษะที่ 2.1  เขียนเรื่องจากคำแบบฝึกเสริมทักษะที่ 2.1  เขียนเรื่องจากคำ
แบบฝึกเสริมทักษะที่ 2.1 เขียนเรื่องจากคำ
 
แบบฝึกเสริมทักษะที่ 2.1 เขียนเรื่องจากคำ
แบบฝึกเสริมทักษะที่ 2.1  เขียนเรื่องจากคำแบบฝึกเสริมทักษะที่ 2.1  เขียนเรื่องจากคำ
แบบฝึกเสริมทักษะที่ 2.1 เขียนเรื่องจากคำ
 
SDSU College of Extended Studies Consulting Report
SDSU College of Extended Studies Consulting ReportSDSU College of Extended Studies Consulting Report
SDSU College of Extended Studies Consulting Report
 
99 cue card for ielts speaking by ielts fighter
99 cue card for ielts speaking by ielts fighter99 cue card for ielts speaking by ielts fighter
99 cue card for ielts speaking by ielts fighter
 
Us engleski jezik ii
Us   engleski jezik iiUs   engleski jezik ii
Us engleski jezik ii
 
Đề tài: Phân tích hoạt động phân phối sản phẩm của công ty TNHH Bao bì sài gò...
Đề tài: Phân tích hoạt động phân phối sản phẩm của công ty TNHH Bao bì sài gò...Đề tài: Phân tích hoạt động phân phối sản phẩm của công ty TNHH Bao bì sài gò...
Đề tài: Phân tích hoạt động phân phối sản phẩm của công ty TNHH Bao bì sài gò...
 

Similar to ใบงานที่ 4

แบบฝึกทักษะที่ 2
แบบฝึกทักษะที่ 2แบบฝึกทักษะที่ 2
แบบฝึกทักษะที่ 2Roman Paduka
 
Arkansas elementary art teachers' attitudes toward discipline-based art educa...
Arkansas elementary art teachers' attitudes toward discipline-based art educa...Arkansas elementary art teachers' attitudes toward discipline-based art educa...
Arkansas elementary art teachers' attitudes toward discipline-based art educa...izzajalil
 
Harvard referencing 2011
Harvard referencing 2011Harvard referencing 2011
Harvard referencing 2011coma-hovadak
 
Taylor john garnier_ rowan-understanding mathematical proof-taylor & fr...
Taylor  john  garnier_ rowan-understanding mathematical proof-taylor & fr...Taylor  john  garnier_ rowan-understanding mathematical proof-taylor & fr...
Taylor john garnier_ rowan-understanding mathematical proof-taylor & fr...Vidi Al Imami
 
แบบฝึกทักษะที่ 2
แบบฝึกทักษะที่ 2แบบฝึกทักษะที่ 2
แบบฝึกทักษะที่ 2Roman Paduka
 

Similar to ใบงานที่ 4 (8)

แบบฝึกทักษะที่ 2
แบบฝึกทักษะที่ 2แบบฝึกทักษะที่ 2
แบบฝึกทักษะที่ 2
 
Arkansas elementary art teachers' attitudes toward discipline-based art educa...
Arkansas elementary art teachers' attitudes toward discipline-based art educa...Arkansas elementary art teachers' attitudes toward discipline-based art educa...
Arkansas elementary art teachers' attitudes toward discipline-based art educa...
 
Harvard referencing 2011
Harvard referencing 2011Harvard referencing 2011
Harvard referencing 2011
 
Taylor john garnier_ rowan-understanding mathematical proof-taylor & fr...
Taylor  john  garnier_ rowan-understanding mathematical proof-taylor & fr...Taylor  john  garnier_ rowan-understanding mathematical proof-taylor & fr...
Taylor john garnier_ rowan-understanding mathematical proof-taylor & fr...
 
Understanding Mathematical Proof
Understanding Mathematical ProofUnderstanding Mathematical Proof
Understanding Mathematical Proof
 
Tugas pertemuan 3
Tugas pertemuan 3Tugas pertemuan 3
Tugas pertemuan 3
 
Grammar guide
Grammar guideGrammar guide
Grammar guide
 
แบบฝึกทักษะที่ 2
แบบฝึกทักษะที่ 2แบบฝึกทักษะที่ 2
แบบฝึกทักษะที่ 2
 

More from Roman Paduka

ใบงานที่ 5
ใบงานที่ 5ใบงานที่ 5
ใบงานที่ 5Roman Paduka
 
ใบงานที่ 2
ใบงานที่ 2ใบงานที่ 2
ใบงานที่ 2Roman Paduka
 
แบบฝึกทักษะที่ 6
แบบฝึกทักษะที่ 6แบบฝึกทักษะที่ 6
แบบฝึกทักษะที่ 6Roman Paduka
 
แบบฝึกทักษะที่ 6
แบบฝึกทักษะที่ 6แบบฝึกทักษะที่ 6
แบบฝึกทักษะที่ 6Roman Paduka
 
แบบฝึกทักษะที่ 5
แบบฝึกทักษะที่ 5แบบฝึกทักษะที่ 5
แบบฝึกทักษะที่ 5Roman Paduka
 
แบบฝึกทักษะที่ 4
แบบฝึกทักษะที่ 4แบบฝึกทักษะที่ 4
แบบฝึกทักษะที่ 4Roman Paduka
 
แบบฝึกทักษะที่ 3
แบบฝึกทักษะที่ 3แบบฝึกทักษะที่ 3
แบบฝึกทักษะที่ 3Roman Paduka
 
แบบฝึกทักษะที่ 1
แบบฝึกทักษะที่ 1แบบฝึกทักษะที่ 1
แบบฝึกทักษะที่ 1Roman Paduka
 
แบบฝึกทักษะที่ 1
แบบฝึกทักษะที่ 1แบบฝึกทักษะที่ 1
แบบฝึกทักษะที่ 1Roman Paduka
 
แบบฝึกทักษะที่ 2
แบบฝึกทักษะที่ 2แบบฝึกทักษะที่ 2
แบบฝึกทักษะที่ 2Roman Paduka
 
แบบฝึกทักษะที่ 1
แบบฝึกทักษะที่ 1แบบฝึกทักษะที่ 1
แบบฝึกทักษะที่ 1Roman Paduka
 

More from Roman Paduka (12)

ใบงานที่ 5
ใบงานที่ 5ใบงานที่ 5
ใบงานที่ 5
 
ใบงานที่ 2
ใบงานที่ 2ใบงานที่ 2
ใบงานที่ 2
 
แบบฝึกทักษะที่ 6
แบบฝึกทักษะที่ 6แบบฝึกทักษะที่ 6
แบบฝึกทักษะที่ 6
 
แบบฝึกทักษะที่ 6
แบบฝึกทักษะที่ 6แบบฝึกทักษะที่ 6
แบบฝึกทักษะที่ 6
 
แบบฝึกทักษะที่ 5
แบบฝึกทักษะที่ 5แบบฝึกทักษะที่ 5
แบบฝึกทักษะที่ 5
 
แบบฝึกทักษะที่ 4
แบบฝึกทักษะที่ 4แบบฝึกทักษะที่ 4
แบบฝึกทักษะที่ 4
 
แบบฝึกทักษะที่ 3
แบบฝึกทักษะที่ 3แบบฝึกทักษะที่ 3
แบบฝึกทักษะที่ 3
 
Story3
Story3Story3
Story3
 
แบบฝึกทักษะที่ 1
แบบฝึกทักษะที่ 1แบบฝึกทักษะที่ 1
แบบฝึกทักษะที่ 1
 
แบบฝึกทักษะที่ 1
แบบฝึกทักษะที่ 1แบบฝึกทักษะที่ 1
แบบฝึกทักษะที่ 1
 
แบบฝึกทักษะที่ 2
แบบฝึกทักษะที่ 2แบบฝึกทักษะที่ 2
แบบฝึกทักษะที่ 2
 
แบบฝึกทักษะที่ 1
แบบฝึกทักษะที่ 1แบบฝึกทักษะที่ 1
แบบฝึกทักษะที่ 1
 

Recently uploaded

ECONOMIC CONTEXT - PAPER 1 Q3: NEWSPAPERS.pptx
ECONOMIC CONTEXT - PAPER 1 Q3: NEWSPAPERS.pptxECONOMIC CONTEXT - PAPER 1 Q3: NEWSPAPERS.pptx
ECONOMIC CONTEXT - PAPER 1 Q3: NEWSPAPERS.pptxiammrhaywood
 
Solving Puzzles Benefits Everyone (English).pptx
Solving Puzzles Benefits Everyone (English).pptxSolving Puzzles Benefits Everyone (English).pptx
Solving Puzzles Benefits Everyone (English).pptxOH TEIK BIN
 
DATA STRUCTURE AND ALGORITHM for beginners
DATA STRUCTURE AND ALGORITHM for beginnersDATA STRUCTURE AND ALGORITHM for beginners
DATA STRUCTURE AND ALGORITHM for beginnersSabitha Banu
 
Earth Day Presentation wow hello nice great
Earth Day Presentation wow hello nice greatEarth Day Presentation wow hello nice great
Earth Day Presentation wow hello nice greatYousafMalik24
 
Atmosphere science 7 quarter 4 .........
Atmosphere science 7 quarter 4 .........Atmosphere science 7 quarter 4 .........
Atmosphere science 7 quarter 4 .........LeaCamillePacle
 
Introduction to ArtificiaI Intelligence in Higher Education
Introduction to ArtificiaI Intelligence in Higher EducationIntroduction to ArtificiaI Intelligence in Higher Education
Introduction to ArtificiaI Intelligence in Higher Educationpboyjonauth
 
Gas measurement O2,Co2,& ph) 04/2024.pptx
Gas measurement O2,Co2,& ph) 04/2024.pptxGas measurement O2,Co2,& ph) 04/2024.pptx
Gas measurement O2,Co2,& ph) 04/2024.pptxDr.Ibrahim Hassaan
 
ECONOMIC CONTEXT - LONG FORM TV DRAMA - PPT
ECONOMIC CONTEXT - LONG FORM TV DRAMA - PPTECONOMIC CONTEXT - LONG FORM TV DRAMA - PPT
ECONOMIC CONTEXT - LONG FORM TV DRAMA - PPTiammrhaywood
 
Types of Journalistic Writing Grade 8.pptx
Types of Journalistic Writing Grade 8.pptxTypes of Journalistic Writing Grade 8.pptx
Types of Journalistic Writing Grade 8.pptxEyham Joco
 
Hierarchy of management that covers different levels of management
Hierarchy of management that covers different levels of managementHierarchy of management that covers different levels of management
Hierarchy of management that covers different levels of managementmkooblal
 
ENGLISH6-Q4-W3.pptxqurter our high choom
ENGLISH6-Q4-W3.pptxqurter our high choomENGLISH6-Q4-W3.pptxqurter our high choom
ENGLISH6-Q4-W3.pptxqurter our high choomnelietumpap1
 
Full Stack Web Development Course for Beginners
Full Stack Web Development Course  for BeginnersFull Stack Web Development Course  for Beginners
Full Stack Web Development Course for BeginnersSabitha Banu
 
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...Nguyen Thanh Tu Collection
 
Quarter 4 Peace-education.pptx Catch Up Friday
Quarter 4 Peace-education.pptx Catch Up FridayQuarter 4 Peace-education.pptx Catch Up Friday
Quarter 4 Peace-education.pptx Catch Up FridayMakMakNepo
 
What is Model Inheritance in Odoo 17 ERP
What is Model Inheritance in Odoo 17 ERPWhat is Model Inheritance in Odoo 17 ERP
What is Model Inheritance in Odoo 17 ERPCeline George
 
Alper Gobel In Media Res Media Component
Alper Gobel In Media Res Media ComponentAlper Gobel In Media Res Media Component
Alper Gobel In Media Res Media ComponentInMediaRes1
 
Field Attribute Index Feature in Odoo 17
Field Attribute Index Feature in Odoo 17Field Attribute Index Feature in Odoo 17
Field Attribute Index Feature in Odoo 17Celine George
 

Recently uploaded (20)

ECONOMIC CONTEXT - PAPER 1 Q3: NEWSPAPERS.pptx
ECONOMIC CONTEXT - PAPER 1 Q3: NEWSPAPERS.pptxECONOMIC CONTEXT - PAPER 1 Q3: NEWSPAPERS.pptx
ECONOMIC CONTEXT - PAPER 1 Q3: NEWSPAPERS.pptx
 
Solving Puzzles Benefits Everyone (English).pptx
Solving Puzzles Benefits Everyone (English).pptxSolving Puzzles Benefits Everyone (English).pptx
Solving Puzzles Benefits Everyone (English).pptx
 
Model Call Girl in Tilak Nagar Delhi reach out to us at 🔝9953056974🔝
Model Call Girl in Tilak Nagar Delhi reach out to us at 🔝9953056974🔝Model Call Girl in Tilak Nagar Delhi reach out to us at 🔝9953056974🔝
Model Call Girl in Tilak Nagar Delhi reach out to us at 🔝9953056974🔝
 
TataKelola dan KamSiber Kecerdasan Buatan v022.pdf
TataKelola dan KamSiber Kecerdasan Buatan v022.pdfTataKelola dan KamSiber Kecerdasan Buatan v022.pdf
TataKelola dan KamSiber Kecerdasan Buatan v022.pdf
 
DATA STRUCTURE AND ALGORITHM for beginners
DATA STRUCTURE AND ALGORITHM for beginnersDATA STRUCTURE AND ALGORITHM for beginners
DATA STRUCTURE AND ALGORITHM for beginners
 
Earth Day Presentation wow hello nice great
Earth Day Presentation wow hello nice greatEarth Day Presentation wow hello nice great
Earth Day Presentation wow hello nice great
 
Model Call Girl in Bikash Puri Delhi reach out to us at 🔝9953056974🔝
Model Call Girl in Bikash Puri  Delhi reach out to us at 🔝9953056974🔝Model Call Girl in Bikash Puri  Delhi reach out to us at 🔝9953056974🔝
Model Call Girl in Bikash Puri Delhi reach out to us at 🔝9953056974🔝
 
Atmosphere science 7 quarter 4 .........
Atmosphere science 7 quarter 4 .........Atmosphere science 7 quarter 4 .........
Atmosphere science 7 quarter 4 .........
 
Introduction to ArtificiaI Intelligence in Higher Education
Introduction to ArtificiaI Intelligence in Higher EducationIntroduction to ArtificiaI Intelligence in Higher Education
Introduction to ArtificiaI Intelligence in Higher Education
 
Gas measurement O2,Co2,& ph) 04/2024.pptx
Gas measurement O2,Co2,& ph) 04/2024.pptxGas measurement O2,Co2,& ph) 04/2024.pptx
Gas measurement O2,Co2,& ph) 04/2024.pptx
 
ECONOMIC CONTEXT - LONG FORM TV DRAMA - PPT
ECONOMIC CONTEXT - LONG FORM TV DRAMA - PPTECONOMIC CONTEXT - LONG FORM TV DRAMA - PPT
ECONOMIC CONTEXT - LONG FORM TV DRAMA - PPT
 
Types of Journalistic Writing Grade 8.pptx
Types of Journalistic Writing Grade 8.pptxTypes of Journalistic Writing Grade 8.pptx
Types of Journalistic Writing Grade 8.pptx
 
Hierarchy of management that covers different levels of management
Hierarchy of management that covers different levels of managementHierarchy of management that covers different levels of management
Hierarchy of management that covers different levels of management
 
ENGLISH6-Q4-W3.pptxqurter our high choom
ENGLISH6-Q4-W3.pptxqurter our high choomENGLISH6-Q4-W3.pptxqurter our high choom
ENGLISH6-Q4-W3.pptxqurter our high choom
 
Full Stack Web Development Course for Beginners
Full Stack Web Development Course  for BeginnersFull Stack Web Development Course  for Beginners
Full Stack Web Development Course for Beginners
 
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...
 
Quarter 4 Peace-education.pptx Catch Up Friday
Quarter 4 Peace-education.pptx Catch Up FridayQuarter 4 Peace-education.pptx Catch Up Friday
Quarter 4 Peace-education.pptx Catch Up Friday
 
What is Model Inheritance in Odoo 17 ERP
What is Model Inheritance in Odoo 17 ERPWhat is Model Inheritance in Odoo 17 ERP
What is Model Inheritance in Odoo 17 ERP
 
Alper Gobel In Media Res Media Component
Alper Gobel In Media Res Media ComponentAlper Gobel In Media Res Media Component
Alper Gobel In Media Res Media Component
 
Field Attribute Index Feature in Odoo 17
Field Attribute Index Feature in Odoo 17Field Attribute Index Feature in Odoo 17
Field Attribute Index Feature in Odoo 17
 

ใบงานที่ 4

  • 1. ใบงานที่ 4 ชื่อ.....................................................................................ชั้น.....................เลขที่........... 1. จงหาโดเมนและเรนจ์ของความสัมพันธ์ต่อไปนี้ 1) r (x, y) y x 2 ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... 2) r (x, y) y x2 1 ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... 3) r (x, y) y 9 x2 ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... .............................................................................................................................. ....... ............................................................................................................................ ......... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... .....................................................................................................................................
  • 2. 2 4) r 5x 2 (x, y) y 9 ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... 2. จงหาโดเมนและเรนจ์ของความสัมพันธ์ต่อไปนี้ โดยพิจารณาจากกราฟของความสัมพันธ์ 1) r (x, y) y x 2 ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ................................................................................................................................. .... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... 2) r (x, y) y x2 1 ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... .......................................................................................................................... ........... .....................................................................................................................................