10x + 25 = 0 x2 − 0 = 3x2 + 17x 6 − 3x2 2x = 5 − 16x2 9 = 0 − 9-28. Use the Quadratic Formula to solve part (b) of problem 9-27 above. Did your solution match the solution you got by factoring and using the Zero Product Property (in part (b) of problem 9-27)? 9-29. Find the equation that represents the information given below. 0 1 2 3 4 x −4 −3 −2 −1 12 5 0 0 5 12 y −3 −4 −3 Solve the following problem using any method. Write your solution as a sentence. 9-30. The length of a rectangle is 5 cm longer than twice the length of the width. If the area of the rectangle is 403 square centimeters, what is the width? 9-31. Which of the points below is a solution to 4x 3y = 10? Note: More than one point may make this − equation true. (1, 2) (4, 2) (7, 6) (4, −3)
x2 − 10x + 25 = 0 0 = 3x2 + 17x − 6 3x2 − 2x = 5 16x2 − 9 = 0 9-28. Use the Quadratic Formula to solve part (b) of problem 9-27 above. Did your solution match the solution you got by factoring and using the Zero Product Property (in part (b) of problem 9-27)? 9-29. Find the equation that represents the information given below. x −4 −3 −2 −1 0 1 2 3 4 y 12 5 0 −3 −4 −3 0 5 12 9-30. Solve the following problem using any method. Write your solution as a sentence. The length of a rectangle is 5 cm longer than twice the length of the width. If the area of the rectangle is 403 square centimeters, what is the width? 9-31. Which of the points below is a solution to 4x − 3y = 10? Note: More than one point may make this equation true. (1, 2) (4, 2) (7, 6) (4, −3)
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