Find the average rate of change for f(x) = x2 + 7x + 10 from x = −20 to x = −15. a) −28 b) −36 c) 28 d) 36

The average rate of change of over the interval is -28.

Step-by-step explanation:

The average rate of change of function f(x) over the interval a ≤ x ≤ b is given by this expression:

It is a measure of how much the function changed per unit, on average, over that interval.

To find the average rate of change of over the interval you must:

Evaluate x = -15 and x = -20 into the function f(x)

Applying the expression for the average rate of change we get

26

step-by-step explanation: