Limit of Secant Slope

This applet demonstrates how the limit of the slope of the secant line through 2 points on a curve approaches the slope of the tangent to the curve at a point as the distance between the two points approaches zero.

P5 Slopes of Tangent Line Applet

Observe the slope of the tangent line along a curve.
P5 Slopes of Tangent Line Applet

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