Average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

The average rate of change is the slope of the secant line connecting the points on f(x) from x=-5 to x=10.

In other words, it is just the slope of the straight line connecting the points


So we were given ,



At





Also at





The average rate of change