5.1 Review Worksheet, Part 2 (continued)
5.1.6 The Quadratic Formula Find the zeros of each function by using the Quadratic Formula. 37. f ( x ) = 3 x 2 − 10 x + 3 38. g ( x ) = x 2 + 6 x
39. h ( x ) = x ( x − 3) − 4
40. g ( x ) = − x 2 − 2 x + 9
41. p ( x ) = 2 x 2 − 7 x − 8
42. f ( x ) = 7 x 2 − 3
43. r ( x ) = x 2 + x + 1
44. h ( x ) = − x 2 − x − 1
45. f ( x ) = 2 x 2 + 8
46. f ( x ) = 2 x 2 + 7 x − 13
47. g ( x ) = x 2 − x − 5
48. h ( x ) = − 3 x 2 + 4 x − 4
Find the type and number of solutions for each equation. 49. 2 x 2 + 5 = 2 x 50. 2 x 2 − 3 x = 8
51. 2 x 2 − 16 x = − 32
52. 4 x 2 − 28 x = − 49
53. 3 x 2 − 8 x + 8 = 0
54. 3.2 x 2 − 8.5 x + 1.3 = 0
55. If a tightrope walker falls, he will land on a safety net. His height h in feet after a fall can be modeled by h ( t ) = 60 − 16 t 2 , where t is the time in seconds. How many seconds will the tightrope walker fall before landing on the safety net?
60 ft
11 ft
256
Made with FlippingBook flipbook maker