The top graph shows the function f(x) and shaded region between the graph of the function and the [b]x[/b]-axis as the point [b]x[/b] is dragged along the [b]x[/b]-axis.[br][br]The bottom graph shows the accumulation funciton [math]A\left(x\right)=\int_a^xf\left(t\right)dt[/math] for each upper limit [b]x[/b], with lower limit [b]a[/b].[br][br][br]

[list][*]Select an option, at the bottom, to explore the [b]Accumulation[/b] function or the [b]Derivative[/b] of the accumulation function.[/*][*]Drag point [b]x [/b]along the [b]x[/b]-axis in the top graph to observe the relationship between the two graphs.[br][/*][*]Drag point[b] a[/b] to change its value.[/*][*]Change the function f(x). Remark: f(x) must be continuous.[br][/*][/list]