Mark hits a tennis ball into the air. He uses the equation shown to approximate the height, h, in feet, of the ball t seconds after he hits it.

Question

h = -16t² + 88t + 4

What does the 4 represent in Mark’s equation?


The ball was in the air for a total of 4 seconds.


The ball landed 4 feet away from where Mark hit it.


The ball was 4 feet above the ground when Mark hit it.


The ball reached its maximum height 4 seconds after Mark hit it.

Answer 1

hint: what is h(0)?

Answer 2

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