Question

(I think its -80) (fan and medal)
A ball is thrown upward from the top of a building. The function below shows the height of the ball in relation to sea level, f(t), in feet, at different times, t, in seconds:

f(t) = −16t2 + 48t + 100

The average rate of change of f(t) from t = 3 seconds to t = 5 seconds is _____feet per second

Answer 1

first you have to find
f(3) and f(5)

Answer 2

tell me what
(3,?) and (5,?)

Answer 3

(3,2) (5,2) ? @Mehek14

Answer 4

(5,-60)
(3,100)

Answer 5

\(\dfrac{-60-100}{5-3}=\dfrac{-160}{2}=-80\)
you are correct