Power point chapter 8 test preparation
- 1. This PowerPoint Covers about 90% of What is on the Chapter 8 Test
- 2. Solve for “y” in terms of “x” Give 2 ordered Get “y” alone Name m and b pairs (0, -5) m = 2 2y = 4x - 10 y = 2x - 5 (1, - 3) b=-5 m = 4 (0, -3) 3y = 12x - 9 y = 4x - 3 b=-3 (1, 1) m = no slope (- 5, 0) x=-5 x=-5 b = none (- 5, 1)
- 3. Give 2 ordered Solve for “y” Name m and b pairs (0, -1) m = 3 y = 3x - 1 y = 3x - 1 (1, 2) b=-1 m = 4 (0, -2) y = 4x – 2 y = 4x – 2 5 5 5 b=-2 (5, 2) m = -3 ( 0, 3) 3x + y = 3 y = -3x + 3 b=3 ( 1, 0)
- 4. Give 2 ordered Solve for “y” Name m and b pairs (0, -5) m = 3 2y = 6x - 10 y = 3x - 5 (1, - 2) b=-5 m = 3 (0, -2) 4y = 12x - 8 y = 3x - 2 b=-2 (1, 1) m = no slope (- 2, 0) x=-2 x=-2 b = none (- 2, 1)
- 5. Give 2 ordered Solve for “y” Name m and b pairs (0, -2) m = 3 y = 3x - 2 y = 3x - 2 (1, 1) b=-2 m = 3 (0, -1) y = 3x – 1 y = 3x – 1 5 5 5 b=-1 (5, 2) m = -2 ( 0, - 3) 2x + y = - 3 y = -2x - 3 b=-3 ( 1, - 5)
- 6. Give 2 ordered Solve for “y” Name m and b pairs (0, -5) m = 4 2y = 8x - 10 y = 4x - 5 (1, - 1) b=-5 m = 2 (0, -3) 6y = 12x - 18 y = 2x - 3 b=-3 (1, -1) m = no slope ( 4, 0) x = 4 x = 4 b = none ( 4, 1)
- 7. Give 2 ordered Solve for “y” Name m and b pairs (0, -5) m = 3 y = 3x - 5 y = 3x - 5 (1, - 2) b=-5 m = 2 (0, -1) y = 2x – 1 y = 2x – 1 5 5 5 b=-1 (5, 1) m = -4 ( 0, - 3) 4x + y = - 3 y = -4x - 3 b=-3 ( 1, - 7)
- 8. Is Name Name This The The a Relation Domain Range Function? {(3,4),(4,6),(5,8),(6,10)} {3, 4, 5, 6} {4, 6, 8, 10} Yes {(4,5),(3, 5),(2,2),(0,-3),(-1, 8)} {4, 3, 2, 0, -1} {5, 2, -3, 8} Yes {(3,5),(4,7),(4,8),(6,10), (6, 12)} {3, 4, 4, 6, 6} {5, 7, 8, 10, 12} No {(4,5),(3, 7), (1,2),(1, -3),(-2, -3)} {4, 3, 1, 1, -2} {5, 7, 2, -3} No {(3,11),(4,7),(-4, 9),(6,12), (-3, 14)} {3, 4, -4, 6, -3} {11, 7, 9, 12, 14} Yes {(4, 5),(5, 7),(1, - 3),(-2, - 3), (5, 2)} {4, 5, 1, -2, 5} {5, 7, -3, 2} No {(2,8),(3,7),(4,6),(5,5), (6, 4)} {2, 3, 4, 5, 6} {8, 7, 6, 5, 4} Yes
- 9. Write a Rule…. Use this Find the Find the information to find change in “y” change in “x” the slope (m) We Need a -2 3 8 13 -10 0 10 20 Table… Use Increasing by “5” Increasing by “10” Division… x y What is the change in What is the change in “y”? “x”? 5 -10 -2 = 1 5 10 10 2 0 3 What is the “y-intercept”? What ordered pair Would You Use to (0, 3) 10 8 find the “y-intercept b=3 1 20 13 m = 2 b = 3 Rule: y = 1x + 3 2
- 10. Write a Rule…. Use this Find the Find the information to find change in “y” change in “x” the slope (m) We Need a -10 0 10 20 -5 0 5 10 Table… Use Increasing by “10” Increasing by “5” Division… x y What is the change in What is the change in “y”? “x”? 10 -5 -10 = 2 10 5 5 0 0 What is the “y-intercept”? What ordered pair Would You Use to (0, 0) 5 10 find the “y-intercept b=0 10 20 m = 2 b = 0 Rule: y = 2x + 0 or y = 2x
- 11. Write a Rule…. Use this Find the Find the information to find change in “y” change in “x” the slope (m) We Need a 9 5 1 -3 0 2 4 6 Table… Use Decreasing by “4” Increasing by “2” Division… x y What is the change in What is the change in “y”? “x”? -4 0 9 = -2 -4 2 2 2 5 What is the “y-intercept”? What ordered pair Would You Use to (0, 9) 4 1 find the “y-intercept b=9 6 -3 m = -2 b = 9 Rule: y = -2x + 9
- 12. Write a Rule…. Use this Find the Find the information to find change in “y” change in “x” the slope (m) We Need a -7 0 7 14 -1 0 1 2 Table… Use Increasing by “7” Increasing by “1” Division… x y What is the change in What is the change in “y”? “x”? 7 -1 -7 = 7 7 1 1 0 0 What is the “y-intercept”? What ordered pair Would You Use to (0, 0) 1 7 find the “y-intercept b=0 2 14 m = 7 b = 0 7 Rule: y = 5
- 13. Write a Rule…. Use this Find the Find the information to find change in “y” change in “x” the slope (m) We Need a -2 -5 -8 -11 -2 0 2 4 Table… Use Decreasing by “3” Increasing by “2 Division… x y What is the change in What is the change in “y”? “x”? -3 -2 -2 -3 = -3 2 2 2 0 -5 What is the “y-intercept”? What ordered pair Would You Use to (0, -5) 2 -8 find the “y-intercept b = -5 -3 4 -11 m = 2 b = -5 3 Rule: y=- x-5 2
- 14. Write a Rule…. Use this Find the Find the information to find change in “y” change in “x” the slope (m) We Need a 7 2 -3 -8 -6 0 6 12 Table… Use Decreasing by “5” Increasing by “6” Division… x y What is the change in What is the change in “y”? “x”? -5 -6 7 -5 = -5 6 6 6 0 2 What is the “y-intercept”? What ordered pair Would You Use to (0, 2) 6 -3 find the “y-intercept b=2 -5 12 -8 m = 6 b = 2 5 Rule: y=- x+2 6
- 15. Graph the System 3y = 3x + 15 2y = -4x + 16 Solve for “y” Solve for “y” y=x + 5 y = -2x + 8 Name the slope Name the slope m = 1 m = -2 Name y intercept Name y intercept b=5 b= 8 Name 2 Name 2 Ordered Pair Ordered Pair (0, 5) (1, 6) (4, 0) (2, 4) Intersect (- 5, 1) (0,5)
- 16. Graph the System 2y = 8x - 10 3y = 12x + 6 Solve for “y” Solve for “y” y = 4x - 5 y = 4x + 2 Name the slope Name the slope m = 4 m = 4 Name y intercept Name y intercept b=-5 b= 2 Name 2 Name 2 Ordered Pair Ordered Pair (0, -5) (1, -1) (0, 2) (1, 6) Parallel (- 5, 1) No solution