Thanks to all of you who support me on Patreon. You da real mvps! $1 per month helps!! 🙂 https://www.patreon.com/patrickjmt !! Tangent Line Approximation / Linearization. In this video (which has nothing to do with higher derivatives!!) we find a tangent line approximation, also known as a linearization. I show the basic geometric idea and step through an example involving the sine function.