Derivative Viewer
Simultaneously study a function and its derivative
Enter an equation describing a curve in the text field below, (in the same way as for the Function Viewer activity). You can scale the plots using the sliders, and pan by dragging the background. The curve will be plotted in the upper plot, and its derivative (i.e. its slope curve in the lower plot.

Click on the curve and drag to view the slope at any point, both as a tangent line in the upper plot, and a point in the lower plot. See how the y-coordinate of the point in the lower plot corresponds to the slope of the tangent in the upper plot. Click on the background to hide the tangent and points.

This activity allows you to interactively explore the nature of a function's derivative.


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