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?

Question

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?

anonymous · Answer

What do you think the answer is?

anonymous · Answer

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

anonymous · Answer

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?