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Unformatted text preview: yintercept, and (iv) graph the function. 15. f x x ( ) ( ) " ! ! + 2 4 2 16. f x x x ( ) " + + 2 8 6 2 October 26, 2011 Math 96  Test 3 page 4 of 4 17. Find an equation either in the form y a x h k " ! + ( ) 2 or y ax bx c " + + 2 that describes the following graph. 18. The height of a ball thrown up from the top of a building is described by the function f t t t ( ) " ! + + 16 32 48 2 , where f t ( ) is the height, in feet, above the ground of the ball t seconds after being thrown. a. After how many seconds does the ball hit the ground? b. After how many seconds does the ball reach its maximum height above the ground? c. What is the maximum height above the ground reached by the ball?...
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 Fall '11
 lapuma
 Math, Quadratic equation, Complex number, real solution

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