(adsbygoogle = window.adsbygoogle || []).push({}); Question:Ryan is trying to hit a golf ball over a tree that is 18m above the ground. The height of the ball is modelled by the function h(t)= -5t^{2}+ 20t, where t is the time in seconds. Explain the domain and range of the function. Will the ball go over the tree?

This is grade 11 review and I totally forgot how to do this. (I think finding the max/min).

I need some help getting started in the right direction or even finding the answer of the domain (with steps please), and I will try to figure out the range my self.

I already know the answer's I need to know how to get them.

D: (XER | 0 < X <4)

R: (YER | 0 < Y <20)

Meaning the ball will pass over the tree.

But how did they get that!!! Please help.

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# Homework Help: Domain/Range of a Function

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