Question

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

Answer 1

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

Answer 2

The answer would be c I know cause I got it right on the test!