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your friend competes in a high jump competition at a track meet. the function h=-16t+18t models height h(in feet ) of your friend after t seconds. after how many seconds is your friend at a height of 4 feet? after how many seconds does your friend land on the ground?

User JCasso
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1 Answer

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The function that models the height is given by:
h=-16t+18t

thus the value of t when h=4ft will be:
4=-16t+18t
4=2t
h=4/2
t=2 seconds

Answer: 2 seconds
User FFirmenich
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