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Reverted edits by Cukuplz (talk) to last revision by Philip J. Rayment
The tangent approximation method is a method in Calculus employed to find the equation of a line tangent to the curve. One must know the slope of the curve and a point on the curve. The slope is usually found by taking the derivative of the equation and equating it to the change in ''y'' over the change in ''x'':
The '''tangent approximation''' method is a method in [[Calculus]] employed to find the equation of a line tangent to the curve. One must know the slope of the curve and a point on the curve. The slope is usually found by taking the derivative of the equation and equating it to the change in ''y'' over the change in ''x'':
<math> \frac{dy}{dx}\ = \frac{rise}{run}\ = \frac{y - y'}{x - x'}\ </math>
<math> \frac{dy}{dx}\ = \frac{rise}{run}\ = \frac{y - y'}{x - x'}\ </math>
<math> y - y' = \frac{dy}{dx}\ x - x'</math>
<math> y - y' = \frac{dy}{dx}\ x - x'</math>
When (''x''',''y''') is a known point on the line.
When ( ''x' '', ''y' '') is a known point on the line.
[[Category:Calculus]]