# Finding the tangent line at a point

Enter the equation of a curve and coordinates of the point at which you want to find the tangent line. The tangent line calculator finds the equation of the tangent line to a given curve at a

## Finding the Equation of a Tangent Line

Find the equation of the slope of tangent to the parabola y 2 = 12x at the point (3, 6) Solution : Equation of the given curve is y 2 = 12x. 2y (dy/dx) = 12 (1) 2y (dy/dx) = 12. dy/dx = 12/2y ==>

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## Tangent Line Calculator

A tangent line is a line that touches the graph of a function in one point. The slope of the tangent line is equal to the slope of the function at this point. We can find the tangent line by taking the derivative of the function in the point. Since a tangent line is of the form y = ax + b we can now fill in x, y, and a to determine the va See more

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## Finding the equation of the tangent line at a point

Choose 1 answer: Step 2 Evaluate the correct limit from the previous step. gives us the slope of the tangent line. To find the complete equation, we need a point the line goes through. Usually
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## Finding tangent line equations using the formal definition of a

How to Find the Equation of a Tangent from an External Point Step 1. Differentiate the function. Step 2. Set the derivative at point a equal to the gradient between the external point and the