1. Graphing Chapter 7

2. Chapter 7.1 Rectangular Coordinate Systems

3. 3,4)( 1. Plot the point and label it B. Start at the origin. Move right 3 places. Move up 4 places. Label the point. B

4. -2,-4)( 2a. Plot the point and label it I. Start at the origin. Move left 2 places. Move down 4 places. Label the point. I

5. -4,5)( Start at the origin. Move left 4 places. Move up 5 places. Label the point. J 2b. Plot the point and label it J.

6. 4,-2)( Start at the origin. Move right 4 places. Move down 2 places. Label the point. K 2c. Plot the point and label it K.

7. 3,7)A ( Start at the origin. Move right 3 places. Move up 7 places. Label the point. A(3, 7) 3a. Plot the point and label it.

8. 0,-6)B ( Start at the origin. Do not move left or right. Move down 6 places. Label the point. B(0, -6) 3b. Plot the point and label it.

9. 3,-4.5 )C ( Start at the origin. Move right 3 places. Move down 4.5 places. Label the point. C(3, -4.5) 3c. Plot the point and label it.

10. -7,2)D ( Start at the origin. Move left 3  places. Move up 2 places. Label the point. 3d. Plot the point and label it. 2 D (, 2) -7 2

11. 4. Find the ordered pair for point C., 7 )C ( Find the x-coordinate. Find the y-coordinate. 2 C

12. 0 2 4 6 8 10 12 14 16 18 20 22 24 26 52 5a. Plot the points. Number of years since 1980 Number of motor vehicle deaths (in thousands) 51 50 49 48 47 46 45 44 43 42 41 0 Number of years since 1980 Number of motor vehicle deaths (in thousands) 051 544 1045 1542 2044 2544

13. 0 2 4 6 8 10 12 14 16 18 20 22 24 26 52 5b. What trends are apparent? Number of years since 1980 Number of motor vehicle deaths (in thousands) 51 50 49 48 47 46 45 44 43 42 41 0 1. They were high in 1980. 2. They have dropped since 1980.

14. No (3, - 1) 3x + 2y = 5 Substitute and check. 3(3) + 2( - 1) ? 5 6a. Are the following ordered pairs solutions to the equation 9 + ( - 2) ? 5 7 ≠ 5

15. Yes (2, -  ) 3x + 2y = 5 Substitute and check. 3(2) + 2( -  ) ? 5 6b. Are the following ordered pairs solutions to the equation 6 + ( - 1) ? 5 5 = 5

16. (0, __ ) 3x – 4y = 12 Substitute into x and solve for y. 3(0) – 4y = 12 7a. Find the missing coordinate to complete the following ordered-pair solutions to the equation -4y = 12 -4 -4 y = - 3 (0, - 3)

17. ( __, 3 ) 3x – 4y = 12 Substitute into y and solve for x. 3x – 4(3) = 12 7b. Find the missing coordinate to complete the following ordered-pair solutions to the equation (8, 3) 3x 3 3x – 12 = 12 3 x = 8 +12 +12 = 24

18. ( __, - 6 ) 3x – 4y = 12 Substitute into y and solve for x. 3x – 4( - 6) = 12 7c. Find the missing coordinate to complete the following ordered-pair solutions to the equation ( - 4, - 6) 3x 3 3x + 24 = 12 3 x = - 4 -24 -24 = -12

19. Chapter 7.1 Rectangular Coordinate Systems