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Secant to Tangent Lines

Author:
Nicole Kroeger
Topic:
Straight Lines
This graph shows the function f(t)=-.5t^2+4t and the tangent line to this function at the point (2,6). The green line represents the secant line. To change the secant line, use the slider. This will allow you to see how the secant line gets closer to the tanget line as the values of x get closer to 2.

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