S=6t^3+8t^2+5 -3≤ t≤ -1

Find the body's average velocity for the given time interval.

1 answer

S(-3) = 6(-27) + 8(9) + 5 = -85
S(-1) = 6(-1) + 8 + 5 = 7

avg velocity = (7 + 85)/(-1 + 3) = 46