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Mathematics 11 Online
OpenStudy (anonymous):

Will Medal A ball is thrown vertically upward. After t seconds, its height h (in feet) is given by the function h(t)=112t-16t^2. After how long will it reach its maximum height?

OpenStudy (anonymous):

What do you think the answer is?

OpenStudy (anonymous):

sadly I cant remember how to do them.. I was looking for somebody to explain since I have 7 on my agenda today..

OpenStudy (anonymous):

No problem, I'll talk you through it. As it's a negative quadratic, the graph looks something like this: |dw:1447333861638:dw| Does this show you how you can work it out?

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