Question 1160607
The height of an object thrown upward with an initial velocity of 96 feet per second is given by the formula h = −16t2 + 96t, where t is the time in seconds.

a)  How long will it take the object to reach a height of 144 feet?
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h = −16t2 + 96t = 144
Solve for t.
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b)  How long will it take the object to return to the point of departure? 
h = −16t2 + 96t = 0
Solve for t.
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Use ^ (Shift 6) for exponents.
h = −16t^2 + 96t