How it works ?
The average rate of change of a continuous function f from input value x = a to input value x = b is given by Fave=(f(b)-f(a))/b-a. The applet below provides a dynamic visual interpretation of this expression. Interact with this applet for a few minutes. You can input different functions in the input box in the upper right-hand corner. You can also adjust the input values a and b using the sliders or their respective input boxes.