Question: If an object is projected upward with an initial velocity of 64 ft per sec from a height of 80 ft, then its height in

If an object is projected upward with an initial velocity of 64 ft per sec from a height of 80 ft, then its height in feet t seconds after it is projected is modeled by the function

How long after it is projected will it hit the ground?

f(t) = -16t +64t + 80.

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