How to calculate the rate of change for an interval
The average rate of change of a function can be found by calculating the change in values of the two points divided by the change in values of the two points. Substitute the equation for and , replacing in the function with the corresponding value. Simplify the expression. 1. What is the rate of change for interval A? Notice that interval is from the beginning to 1 hour. Step 1: Identify the two points that cover interval A. The first point is (0,0) and the second point is (1,6). Step 2: Use the slope formula to find the slope, which is the rate of change. The average rate of change is defined as the average rate at which quantity is changing with respect to time or something else that is changing continuously. In other words, the average rate of change is the process of calculating the total amount of change in respect to another.