A boy standing on a 64 foot cliff drops a coin off the cliff. If the equation of the height h of the coin t seconds after it drops is h = -16t2 + 64, about how many seconds will the coin take to reach the bottom of the cliff?
A. 1 second
B. 1.5 seconds
C. 2 seconds
D. 2.5 seconds

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okay what is the height of the bottom of the cliff?

lets go over this together.

probably 64!

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