The area between a curve and the [i]x[/i]-axis is found by integrating the function. [br]This interactive shows the relationship between the area and points on the[br]antiderivative function.[br][list][*]Input a function. View the graph and the graph of its antiderivative.  [br][/*][*]Move points [b]a[/b] and [b]b[/b] to see the change in area.[br][/*][*]Notice the area is found from the difference between points on the antiderivative curve. It illustrates how the integral relates to the antiderivative function.[/*][/list]