yes [ATTACH=full]3100[/ATTACH]=0
explanation:
The height of the ball is a function of time, so the equation can be expressed as
f(t) = -16t^2 + 64t + 5, and the average rate of change can be found by calculating
(f(3) − f(1))/(3 − 1) .
(-16(3)^2 + 64(3) + 5 - (-16(1)^2 + 64(1) + 5))/2 = (53 - (53))/2 = 0/2 = 0
Alternatively, the rate of change can be determined by finding the slope of the secant line through
points (1,f(1)) and (3,f(3)).
Notice that this is a horizontal line, which has a slope of 0.
[ATTACH=full]3101[/ATTACH]
