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A model rocket is launched into the air from ground level.

The height, in feet, is modeled by p(x) = -16x2 + 32x, where x is

the number of elapsed seconds. What is the total number of seconds

the model rocket will be in the air?

(1)

(3) 0

Verified Answer :

darth666

\(p(x)=-16x^2+32x

p(x)=0\)

\(-16x^2+32x = 0\)

\(-16x(x-2)=0\)

\(x_1=0, x_2=2\)

Rocket will be in the air for 2 seconds.


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