♾️ap calculus ab/bc review

Tangent Line Approximation

Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2027 exam
Verified for the 2027 examWritten by the Fiveable Content Team • Last updated August 2025

Definition

Tangent line approximation, also known as linear approximation or tangent line estimation, is a method that uses the equation of a tangent line at a specific point on a curve to approximate the value of the function near that point. It provides a close estimate when dealing with small intervals.

AP course connection

Topic 10.11: 10.11 Finding Taylor Polynomial Approximations of Functions

Unit 10

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