(a) Factor 2x2−8x−102x2−8x−10 completely. (b) Solve the quadratic equation 28x+16=8x228x+16=8x2 using any appropriate method. (c) A ball is thrown upward from an initial height of 60 feet with an initial speed of 64 feet per second. This scenario can be modeled by the function f(x)=−16x2+64x+60f(x)=−16x2+64x+60. After how many seconds does the ball reach its maximum height? What is the maximum height of the ball? (d) Describe the end behavior and state the number of possible turning points for the function f(x)=−x5+4x4+6x3−4x2+x−1f(x)=−x5+4x4+6x3−4x2+x−1 (e) Simplify the expression: 2x3y53−2x4y3

Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter10: Quadratic Equations
Section10.5: Graphing Quadratic Equations
Problem 10.108TI: A toy rocket shot upward from the ground at a rate of 208 ft/sec has the quadratic equation of...
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(a) Factor 2x2−8x−102x2−8x−10 completely.

(b) Solve the quadratic equation 28x+16=8x228x+16=8x2 using any appropriate method.

(c) A ball is thrown upward from an initial height of 60 feet with an initial speed of 64 feet per second. This scenario can be modeled by the function f(x)=−16x2+64x+60f(x)=−16x2+64x+60. After how many seconds does the ball reach its maximum height? What is the maximum height of the ball?

(d) Describe the end behavior and state the number of possible turning points for the function f(x)=−x5+4x4+6x3−4x2+x−1f(x)=−x5+4x4+6x3−4x2+x−1

(e) Simplify the expression: 2x3y53−2x4y3

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