### Home > APCALC > Chapter 6 > Lesson 6.4.2 > Problem 6-138

6-138.

What is the best linear approximation of the general function near

*?*

Recall that a linear approximation is the equation of a secant line on a curvy function when you 'zoom in' on a given point until the graph appears to be linear. This is almost the same as a _________________________________________________.