Mean Value Theorem

Drag the points a and b to create a closed interval. Click the check box to draw the secant line through the endpoints, and then draw a line that is parallel to the secant line. Find the point(s) on the graph of f(x) where the tangent line is parallel to the secant line.

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You can change the function by right-clicking on the graph, choosing "Function h," and then "Object Properties."

BKD, Created with GeoGebra