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## Homework Statement

A basketball is thrown into the air, and it's height is determined by

h = 3/4t(20-t) where t = time.

## Homework Equations

What is the greatest height the ball reaches

## The Attempt at a Solution

Ok so i tried to graph this out but stuffed up, a bit hard to show here.

So first i expanded the rule into

h=15t-3/4t^2

or

h=-3/4t^2+15t

Now i'm just wondering how i would graph that?