# How do I find the tangent line of a function?

##### 1 Answer

Sep 28, 2014

You find the tangent line of a function by finding the derivative, the slope, of that function at a specific point.

That point is called the point of tangency.

Substitute that point and the derivative into the slope intercept formula,

Lastly, the equation of the tangent line is found by substituting in the derivative and