Find the average rate of change of f (x) = x^2-5x+2 from x=3 to x=8.

Simplify your answer as much as possible.

Rate of change will be the difference in f (3) and f (8). solve for the 2 first:

f (3) = 3²-5 (3) + 2 = - 4

f (8) = 8²-5 (8) + 2 = 26

than find the difference in f (3) - f (8) = - 4-26 = - 30