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A professor uses a video camera to record the motion of an object falling from a height of 250 meters. The function f(x) = –5x2 + 250 can be used to represent the approximate height of the object off the ground after x seconds. Which is the best estimate for the amount of time elapsed when the object is 120 meters off the ground? 4 seconds 5 seconds 6 seconds 7 seconds

(The answer is 5 seconds)

User Bit Hunter
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2 Answers

2 votes

Answer:

B is the answer

Explanation:

i just took the test

User Luhuiya
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4 votes
did you answer your own question?
User Smnbbrv
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