1 / 6

Quadratic Functions

Quadratic Functions. ALGEBRA 1 LESSON 10-2. pages 520–523  Exercises 1. x = 0, (0, 4) 2. x = –1, (–1, –7) 3. x = 4, (4, –25) 4. x = 1.5, (1.5, –1.75) 5. B 6. E 7. C 8. F 9. A 10. D. 11. 12. 13. . 14. 15. a. 20 ft b. 400 ft 2 16. a. 1.25 s b. 31 ft

sfrederick
Download Presentation

Quadratic Functions

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Quadratic Functions ALGEBRA 1 LESSON 10-2 pages 520–523  Exercises 1.x = 0, (0, 4) 2.x = –1, (–1, –7) 3.x = 4, (4, –25) 4. x = 1.5, (1.5, –1.75) 5. B 6. E 7. C 8. F 9. A 10. D 11. 12. 13. 14. 15.a. 20 ft b. 400 ft2 16.a. 1.25 s b. 31 ft 17. 10-2

  2. Quadratic Functions ALGEBRA 1 LESSON 10-2 18. 19. 20. 21. 22. 23. 24. 25. 26. 10-2

  3. Quadratic Functions ALGEBRA 1 LESSON 10-2 27. 28. 29. 30. 31. 32–34.Answers may vary. Samples are given. 32.y = 2x2 – 8x + 1 33.y = –3x2 34.y = 2x2 + 4 35.a. 1.2 m b. 7.2 m 36.a.y < –0.1x2 + 12 b. c. Yes; when x = 6, y = 8.4, so the camper will fit. 37.a. $12.50 b. $10,000 38. 26 units2 39. 26 units2 10-2

  4. Quadratic Functions ALGEBRA 1 LESSON 10-2 40. Answers may vary. Sample: If the coefficient of the squared term is pos., the vertex point is a min.; if it is neg., the vertex point is a max. 41. Answers may vary. Sample: a affects whether the parabola opens up or down, b affects the axis of symmetry, and c affects the y-intercept. 42.a.w = 13 – b.A = – 2 + 13 c. (6.5, 42.25) d. 6.5 ft by 6.5 ft 43.a. 0.4 s b. No; after 0.6 s, the ball will have a height of about 2.23 m but the net has a height of 2.43 m. 44. 45.a. 0.4 s b. No; it takes about 0.8 s to return to h = 0.5 m, so it will take more time to reach the ground. 10-2

  5. 50.[2] axis of symmetry: x = = 16.7 maximum height: y –0.009(16.7)2 + 0.3(16.7) + 4.5 y 7 ft [1] appropriate methods, but with a minor computational error 51. C 52. A 53. F 54. D 55. B 56. E 46.a. (0, 2) b.x = –2.5 c. 5 d.y = x2 + 5x + 2 e. Answers may vary. Sample: Test (–4, –2). –2 (–4)2 + 5(–4) + 2 –2 16 – 20 + 2 –2 = –2 f. No; you would not be able to determine the b value using the vertex formula. 47. A 48. I 49. B –b 2a –0.3 2(–0.009) Quadratic Functions ALGEBRA 1 LESSON 10-2 10-2

  6. Quadratic Functions ALGEBRA 1 LESSON 10-2 57.c2 – 5c – 36 58. 2x2 + 7x – 30 59. 20t2 + 17t + 3 60. 21n4 – 62n2 + 16 61. 2a3 + 9a2 – a + 20 62. 6r3 + 9r2 – 20r + 7 10-2

More Related