An archer shoots an arrow into the air such that its height at any time, t, is given by the function . If the maximum height of the arrow occurs at 4 seconds after it is launched, what is the value of k?

The answer is b.i hope this i got the answer from google just to make sure i was correct didnt wann...

SAT, 13.11.2021 07:50 antojustice

An archer shoots an arrow into the air such that its height at any time, t, is given by the function $f(t)=-16t^{2}+kt+3.$ . If the maximum height of the arrow occurs at 4 seconds after it is launched, what is the value of k?

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