Pre-Calculus Practice Problem 53

Pre-Calculus Practice Problem 53 - Unit 2, Activity 1, A...

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Unit 2, Activity 1, A Review of the Quadratic Function with Answers Blackline Masters, Advanced Math-PreCalculus Page 51 Louisiana Comprehensive Curriculum, Revised 2008 4. For each of the graphs below write a) an equation in factored form and (b) a possible equation for the function in the form c bx ax y + + = 2 . a) y = (x – 6)(x + 2)in factored form and a possible equation y = x 2 - 4x – 12 b) y = (x + 2)(x + 2) in factored form and a possible equation y = x 2 + 4x + 4 c) y = -(x + 5)(x – 5) in factored form and a possible equation y = 25 - x 2 5. If a ball is thrown upward from a building 20 meters tall, then its approximate height above the ground t seconds later is given by h(t) = 20 + 25 t -4.9 t 2 . a. After how many seconds does the ball hit the ground? 20 + 25t – 4.9t 2 = 0 at t 5.8 seconds b. What is the domain of this function? domain {t : 0 < t < 5.8} c. How high does the ball go? maximum height is
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This note was uploaded on 10/10/2011 for the course MAC 1147 taught by Professor German during the Fall '08 term at University of Florida.

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