1 / 9

Chapter 9 Review

Chapter 9 Review. Speed Play. Solve each equation by using the quadratic formula. 3 x 2 – 7 x + 4 = 0. Solve each equation by using the quadratic formula. x 2 – 4 x + 6 = 0. The determinant is negative. No Real Solution.

zarifa
Download Presentation

Chapter 9 Review

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. Chapter 9 Review Speed Play

  2. Solve each equation by using the quadratic formula. 3x2– 7x + 4 = 0

  3. Solve each equation by using the quadratic formula. x2– 4x + 6 = 0 The determinant is negative. No Real Solution

  4. A tennis ball is dropped from the top of a tall building. The ball’s height, in meters, t seconds after it is released is h(t) = –4.9t2 + 175. Find h(3) and give a real-world meaning for this value. h(3)=130.9 which is the height of the ball 3 seconds after the ball is dropped b. When is the ball 60 meters above the ground? Give your answer to the nearest hundredth of a second. t=4.84 seconds

  5. Tennis ball continued… A tennis ball is dropped from the top of a tall building. The ball’s height, in meters, t seconds after it is released is h(t) = –4.9t2 + 175. c. When does the ball hit the ground? Give your answer to the nearest hundredth of a second. t=5.98 seconds

  6. Tell whether each statement is true or false. If the statement is false, change the right side to make it true. Give the corrected right side in the same form as the original. For example, if the right side is given in factored form, write the corrected version in factored form. • 1. (x + 2)2 = x2 + 4 • 2. (x – 6)(x – 7) = x2 + 42 • 3. 4(x – 1)2 + 6 = 4x2 – 8x + 10 x x x +2 -1 -6 x2 x2 x2 2x -6x -x x x x False; (x + 2)2 = x2 + 4x +4 -x -7x 2x 42 1 4 -1 +2 -7 False; (x - 6) (x- 7) = x2 - 13x +42 True

  7. Solve the equation x2 – 4x – 2 = 0 by completing the square. Leave your answer in radical form.

  8. Consider the equation. y = (x – 6)(x – 2) a. Find the x-intercepts and the vertex of the graph of the equation. x -4 x2 -4x x • Because of the Zero Product Property either (x - 6) = 0 or (x – 2) = 0, • so x = 6 or 2. • Vertex: (4, -4) • x-coord: y-coord: -4x 16 -4 b. Write the equation in vertex form. c. Write the equation in general form.

  9. Write the equation for this parabola in vertex form. From the points shown you can see that there is no stretch nor shrink (over 1 down 1), but there is a reflection and a translation right 2 and down 1.

More Related