This document provides information about evaluating algebraic expressions. It defines an algebraic expression as a mathematical statement containing numbers, symbols, variables, and operators but no equal sign. Examples of algebraic expressions are provided. The key steps for evaluating algebraic expressions are: 1) substitute the given value for the variable, 2) perform the operations following PEMDAS order. Practice problems are provided to evaluate expressions when given values for variables. The objectives are to identify and apply the steps for evaluating expressions and solve word problems involving expressions. A sample word problem involving the perimeter of a rectangular garden is worked out.
Final Exam Name___________________________________Si.docxcharlottej5
Final Exam Name___________________________________
Silva Math 96 Spring 2020
YOU MUST SHOW ALL WORK AND BOX YOUR ANSWERS FOR CREDIT. WORK ALONE.
Solve the absolute value inequality. Write your answer
in interval notation.
1) |2x - 12 |> 2
Solve the compound inequality. Graph the solution set.
Write your answer in interval notation.
2) -4x > -8 and x + 4 > 3
Solve the three-part inequality. Write your answer in
interval notation.
3) -1 < 3x + 2 < 14
Solve the absolute value equation.
4) 4x + 9 = 2x + 7
Solve the compound inequality.
5) 3( x + 4 ) ≥ 0 or 4 ( x + 4 ) ≤ 4
Solve the inequality. Graph the solution set and write
your answer in interval notation.
6) |5k + 8| > -6
Solve the inequality graphically. Write your answer in
interval notation .
7) x + 3 ≥ 1
x-8 -6 -4 -2 2
y
8
6
4
2
x-8 -6 -4 -2 2
y
8
6
4
2
1
Graph the system of inequalities.
8) 2x + 8y ≥ -4
y < - 3
2
x + 6
x-10 -8 -6 -4 -2 2 4 6 8 10
y
10
8
6
4
2
-2
-4
-6
-8
-10
x-10 -8 -6 -4 -2 2 4 6 8 10
y
10
8
6
4
2
-2
-4
-6
-8
-10
Find the determinant of the given matrix.
9) 10 5
0 -4
Use Cramer's rule to solve the system of linear
equations.
10) 6x + 5y = -12
2x - 2y = -4
Write a system that models the situation. Then solve the
system using any method. Must show work for credit.
11)A vendor sells hot dogs, bags of potato chips,
and soft drinks. A customer buys 3 hot dogs,
4 bags of potato chips, and 5 soft drinks for
$14.00. The price of a hot dog is $0.25 more
than the price of a bag of potato chips. The
cost of a soft drink is $1.25 less than the price
of two hot dogs. Find the cost of each item.
Use row reduced echelon form to solve the system.
12) x + y + z = 3
x - y + 4z = 11
5x + y + z = -9
2
Find the domain of f. Write your answer in interval
notation.
13) f(x) = 13 - 9x
If possible, simplify the expression. If any variables
exist, assume that they are positive.
14) 2x + 6 32x + 6 8x
Match to the equivalent expression.
15) 100-1/2
A) 1
1000
B) 1
10
C) 1
100
D) 1
10
Write the expression in standard form.
16) (5 + 8i) - (-3 + i)
Simplify the expression. Assume that all variables are
positive.
17) 5 t
5
z10
Solve the equation.
18) 3x + 1 = 3 + x - 4
Write the expression in standard form.
19) 3 + 3i
5 + 3i
3
Write the equation in vertex form.
20) y = x2 + 5x + 2
The graph of ax2 + bx + c is given. Use this graph to solve
ax2 + bx + c = 0, if possible.
21)
x-5 5 10
y
50
40
30
20
10
-10
-20
-30
-40
-50
x-5 5 10
y
50
40
30
20
10
-10
-20
-30
-40
-50
Solve the equation. Write complex solutions in standard
form.
22) 4x2 + 5x + 5 = 0
Graph the quadratic function by its properties.
23) f(x) = 1
3
x2 - 2x + 3
x
y
x
y
Solve the equation. Find all real solutions.
24) 2(x - 1)2 + 11(x - 1) + 12 = 0
Solve the problem.
25) The length of a table is 12 inches more than its
width. If the area of the table is 2668 square
inches, what is its length?
4
Solve the equation..
This learner's module discusses or talks about the topic of Quadratic Functions. It also discusses what is Quadratic Functions. It also shows how to transform or rewrite the equation f(x)=ax2 + bx + c to f(x)= a(x-h)2 + k. It will also show the different characteristics of Quadratic Functions.
How to Create Map Views in the Odoo 17 ERPCeline George
The map views are useful for providing a geographical representation of data. They allow users to visualize and analyze the data in a more intuitive manner.
Final Exam Name___________________________________Si.docxcharlottej5
Final Exam Name___________________________________
Silva Math 96 Spring 2020
YOU MUST SHOW ALL WORK AND BOX YOUR ANSWERS FOR CREDIT. WORK ALONE.
Solve the absolute value inequality. Write your answer
in interval notation.
1) |2x - 12 |> 2
Solve the compound inequality. Graph the solution set.
Write your answer in interval notation.
2) -4x > -8 and x + 4 > 3
Solve the three-part inequality. Write your answer in
interval notation.
3) -1 < 3x + 2 < 14
Solve the absolute value equation.
4) 4x + 9 = 2x + 7
Solve the compound inequality.
5) 3( x + 4 ) ≥ 0 or 4 ( x + 4 ) ≤ 4
Solve the inequality. Graph the solution set and write
your answer in interval notation.
6) |5k + 8| > -6
Solve the inequality graphically. Write your answer in
interval notation .
7) x + 3 ≥ 1
x-8 -6 -4 -2 2
y
8
6
4
2
x-8 -6 -4 -2 2
y
8
6
4
2
1
Graph the system of inequalities.
8) 2x + 8y ≥ -4
y < - 3
2
x + 6
x-10 -8 -6 -4 -2 2 4 6 8 10
y
10
8
6
4
2
-2
-4
-6
-8
-10
x-10 -8 -6 -4 -2 2 4 6 8 10
y
10
8
6
4
2
-2
-4
-6
-8
-10
Find the determinant of the given matrix.
9) 10 5
0 -4
Use Cramer's rule to solve the system of linear
equations.
10) 6x + 5y = -12
2x - 2y = -4
Write a system that models the situation. Then solve the
system using any method. Must show work for credit.
11)A vendor sells hot dogs, bags of potato chips,
and soft drinks. A customer buys 3 hot dogs,
4 bags of potato chips, and 5 soft drinks for
$14.00. The price of a hot dog is $0.25 more
than the price of a bag of potato chips. The
cost of a soft drink is $1.25 less than the price
of two hot dogs. Find the cost of each item.
Use row reduced echelon form to solve the system.
12) x + y + z = 3
x - y + 4z = 11
5x + y + z = -9
2
Find the domain of f. Write your answer in interval
notation.
13) f(x) = 13 - 9x
If possible, simplify the expression. If any variables
exist, assume that they are positive.
14) 2x + 6 32x + 6 8x
Match to the equivalent expression.
15) 100-1/2
A) 1
1000
B) 1
10
C) 1
100
D) 1
10
Write the expression in standard form.
16) (5 + 8i) - (-3 + i)
Simplify the expression. Assume that all variables are
positive.
17) 5 t
5
z10
Solve the equation.
18) 3x + 1 = 3 + x - 4
Write the expression in standard form.
19) 3 + 3i
5 + 3i
3
Write the equation in vertex form.
20) y = x2 + 5x + 2
The graph of ax2 + bx + c is given. Use this graph to solve
ax2 + bx + c = 0, if possible.
21)
x-5 5 10
y
50
40
30
20
10
-10
-20
-30
-40
-50
x-5 5 10
y
50
40
30
20
10
-10
-20
-30
-40
-50
Solve the equation. Write complex solutions in standard
form.
22) 4x2 + 5x + 5 = 0
Graph the quadratic function by its properties.
23) f(x) = 1
3
x2 - 2x + 3
x
y
x
y
Solve the equation. Find all real solutions.
24) 2(x - 1)2 + 11(x - 1) + 12 = 0
Solve the problem.
25) The length of a table is 12 inches more than its
width. If the area of the table is 2668 square
inches, what is its length?
4
Solve the equation..
This learner's module discusses or talks about the topic of Quadratic Functions. It also discusses what is Quadratic Functions. It also shows how to transform or rewrite the equation f(x)=ax2 + bx + c to f(x)= a(x-h)2 + k. It will also show the different characteristics of Quadratic Functions.
How to Create Map Views in the Odoo 17 ERPCeline George
The map views are useful for providing a geographical representation of data. They allow users to visualize and analyze the data in a more intuitive manner.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
3. Review:
What is an algebraic expression?
An algebraic expression is a mathematical
statement that contains a combination of
numbers, symbols, variables and
mathematical operators. It does not have
an equal sign.
Example:
2x + 3
y2 – 4y + 4
5x + 2y
4. Drill: SAGOT MO,PUNTOS MO
Find the answer to the following multi operation mathematical expression
by connecting the expression in column A to the corresponding answer in
column B.
A B
(3)(8) – (14+10)
(2+6)(2-3)
(2)(3) + 4 - 5
5
-8
0
5.
6. Activity 1
_
_
Suppose numbers are assigned to letters of the alphabet as
follows: Let
A=1 E=5 I=9 M=13 Q=17 U=21 Y=25
B=2 F=6 J=10 N=14 R=18 V=22 Z=26
C=3 G=7 K=11 O=15 S =19 W=23
D=4 H=8 L=12 P=16 T=20 X=24
1. Using this, find the value of your first name by adding the
values of its digits. For example:
S H A H A N I
19 + +
1 = 60
2. Compare it with the values of the names of your
classmates.
+
8
8 + 1 + 14 + 9
7. When a number is substituted or replaced for
the variable in a given algebraic expression,
the expression takes a numerical value.
Finding the value is what we call
Evaluating Algebraic Expression
8. Objectives:
a. Identify the steps in evaluating algebraic expressions
b. Apply the steps in evaluating algebraic expressions
c. Solve word problems involving algebraic expressions
9. Evaluate 6x2 + 3 ; when
1.) x = 0 2.) x = -2
In example 1, evaluate 6x2 + 3 if x = 0
Step 1: Substitute/replace x with 0 in the given algebraic
expression.
6(0)2 + 3
Step 2: Perform the indicated operations by following the
PEMDAS rule.
6(0)2 + 3
6(0) + 3
0 + 3
3
10. Example 2.
Evaluate 6x2 + 3 if x = -2
Step 1: Substitute/replace x with -2 in the given
algebraic expression.
6(-2)2 + 3
Step 2: Perform the indicated operations by following the
PEMDAS rule.
6(-2)2 + 3
6(4) + 3
24 + 3
27
12. 5. Your output will be scored according to this
standard:
1.Group yourselves by 4 according to your nearest
neighbor (classmate) in your community.
2.Choose your activity to be performed from set A
and Set B
3. Take a video while your classmate/groupmate is
answering on how he/she evaluates algebraic
expression.
4. Submit or send the video (with names of the
members) together with a pictures of your output on
facebook account Shahani Eduardo thru messenger
within a day.
Group Activity
13. Cooperative Learning Rubrics
Excellent
5 points
Acceptable
3 points
Minimal
1 point
Accuracy Correct answer.
Following all
the steps.
Correct answer,
but missing some
of the steps.
Wrong answer.
Missing the
correct steps.
Time Frame First group to
pass within the
time limit.
Following groups to
pass within the
time limit.
Groups that
passes
exceeding the
time limit.
Cooperation All members
doing their
assigned tasks
cooperatively.
Some members did
not cooperate in
the activity.
Few members
do the activity.
14. Find the value of each expression and write the answer
in the square.
Set A Set B
When x = 5 When x = 7
X = 5 X = 7
(x
-
3)
2
2x - 11
3x
2
+
2x
-
3
3x2 + 2x - 3
2x
-
11
(x
-
3)
2
2x – 11
2(5) – 11
10 – 11
-1
-1
2x – 11
2(7) – 11
14 – 11
3
3
7 10
82
3x2 + 2x – 3
3(5)2 + 2(5) – 3
3(25) + 10 – 3
75 +10 – 3 = 82
158
3x2 + 2x – 3
3(7)2 + 2(7) – 3
3(49) + 14 – 3
147 +14 – 3 = 158
4
(x – 3)2
(5 – 3)2
(2)2 = 4
16
(x – 3)2
(7 – 3)2
(4)2 = 16
15. Word Problem
Seth wanted to fence his garden using a cyclone
wire. He needs to find the perimeter of his
garden to determine the length of a cyclone wire
he will be using. Find the perimeter of his
rectangular garden which is 9 meters long and 4
meters wide.
length (l) = 9 meters
width (w) = 4 meters
l
l
w w
l + w + l + w
9 + 4 + 9 + 4
= 26 meters
16. Generalization
What are the steps to follow in
evaluating algebraic expression?
1. Substitute/Replace the variable by
the given number value.
2. Perform the indicated operation by
following the PEMDAS rule.
18. Assignment:
1.) Maria will be 37 years old in two years.
Solve the problem. Maria is 5 more
than thrice the age of her son. In
two years, how old will Maria be if
her son is 10 years old now?