AP Calculus ABChapter 21 of 46
Linear Approximation
Not yet publishedplanned runtime 10–14 min
Zoom in far enough and every differentiable curve is a line — so borrow the line when the curve is too hard.
What this chapter covers
- build the local linearization of a function at a point
- approximate function values with it
- decide over- or underestimate from how the curve bends