A diver jumps from a diving board 65 feet above the water  Height = -16t^2+9t+65 where the height is measured in feet and the time t is measured in seconds. When will the diver reach the highest point? How many seconds will it take the diver to reach the water?

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter4: Polynomials
Section4.6: Multiplying Polynomials
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A diver jumps from a diving board 65 feet above the water 

Height = -16t^2+9t+65

where the height is measured in feet and the time t is measured in seconds.

When will the diver reach the highest point?

How many seconds will it take the diver to reach the water?

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