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The function f(x) = –16x2 + 64x + 200 models the height of a model rocket, f(x), in feet, x seconds after it was launched. After how many seconds did the rocket reach its maximum height? A. 2 seconds B.
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The function f(x) = –16x2 + 64x + 200 models the height of a model rocket, f(x), in feet, x seconds after it was launched. After how many seconds did the rocket reach its maximum height?

A. 2 seconds
B. 4 seconds
C. 64 seconds
D. 256 seconds

The function f(x) = –16x2 + 64x + 200 models the height of a model rocket, f(x), in-example-1
User Ekkis
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2 Answers

12 votes
The answer is actually A, or 2 seconds. If you make a table of values , and replace X with any of the answers given, you’ll see that at 2 seconds, the rocket has reached it max height of 264 feet
The function f(x) = –16x2 + 64x + 200 models the height of a model rocket, f(x), in-example-1
User BlackHawk
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3.4k points
12 votes
The answer would be c I know cause I got it right on the test!
User Fasani
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