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3.1 3.2 Notes

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  • 1. Day 31: 3.1 and 3.2 Getting Started & Transformations Launch:     Overview of Coordinate Plane y‐axis origin x‐axis y‐coordinate ordered pair x‐coordinate 1
  • 2. Identifying  Ordered Pairs: I. (1, 2) II. (‐1, 2) III. (1, ‐2) IV. (0, 0) F B What are the other E A O coordinates? C D 2
  • 3. Other Coordinate l Plane Practice: (3, 7) Line l is vertical and passes through (3, 7). a. Find 6 points on l. b. Find 6 points not      on l. c. How can you tell     if a point is or isn't     on l by looking at     its coordinates? 3
  • 4. For you to think 1. The y‐axis is the only vertical line that passes  about: through (0, 0). What do the coordinates of the points  on the y‐axis have in common? Do the points on the x‐axis follow the same pattern? 2. Graph a horizontal line through (‐2, 1) in a  coordinate plane. Name two other points on the line. 4
  • 5. What about this? 3. Shade the region or set of points on a coordinate  plane where you find (a,b) in the following cases: a. 3≤a≤4 and 0≤b≤1 b. 2≤a≤5 and 0≤b≤1 a. b. Complete #8 on page 191 on your own. (3 minutes) 5
  • 6. 3.2 Transformations Turn to pg. 196. 6
  • 7. Refer to the coordinate graph on the left and answer the  following questions: 1.) Where can you find a point whose x‐coordinate is  negative? positive? zero? 2.) Where can you find a point whose y‐coordinate is  negative? positive? zero? 3.) Where can you find a point whose x‐coordinate is 8? 4.) Where can you find a point whose y‐coordinate is ‐6? 5.) Where can you find a point whose y‐coordinate is less  than its x‐coordinate? 7
  • 8. 8
  • 9. Homework:  pg. 193 #11, 15, 19 pg. 200 #6‐8, 10, 12, 13 9
  • 10. 10