Given a function
Step 4: Substitute the results from Step 1 and Step 2 into the formula above, we get
Step 1 :Step 1: Substitute
Step 2 :Step 2: Substitute
Step 3 :Step 3: The average rate of change of
Step 4 :Step 4: Substitute the results from Step 1 and Step 2 into the formula above, we get