Mathematics Archives
Math Archives: Visual Calculus: Tangent Lines
This is a detailed site concerning tangent lines to curves. The site gives the limiting definition of the slope of the tangent. This site has a link to a discussion and animation of the approaching secant line, a java applet for the...
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Karl's Calculus: Derivatives: The Equation of the Tangent
This site goes through a step by step example of how to find the equation of the tangent to a curve using the derivative.