# Derivative Function: Without Words

In the applet below, a function

*f*is shown (black). Its derivative function, f', is shown in gray. Feel free to input any function you'd like. Slide the slider to see the physical meaning of the derivative of a function (at a certain input value: x-coordinate of white point) within this graphical context.*How can we sketch the graph of the derivative of a function? Explain.*## Quick Demo (BGM: Andy Hunter)

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