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The height y (in feet) of an arrow t seconds after it is shot from a bow can be modeled by the function y=-16t² + 112t + 2.
a. Write the function in vertex form.
Y
b. Find the maximum height of the arrow.
The maximum height of the arrow is
feet.
c. How long does it take the arrow to hit the ground? Round your answer to the nearest second.
It takes about seconds for the arrow to hit the ground.


Sagot :

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