find the average rate of change of
f(x)=x^3-5x+3:
a. from -6 to -3
b. from -1 to 2
c. from 2 to 8
I am so lost, can someone please show me how to do this?
I will do the first, you do the other two....
f(-3) = -27 + 15 + 3 = -9
f(-6) = -216 + 30 + 3 = -183
so avg rate of change = (-9 - (-183))/(-3-(-6))
= 174/3 = 58