**3.10: Linear Approximations and Differentials**
https://math.libretexts.org/Courses/Cosumnes_River_College/Math_400%3A_Calculus_I_-_Differential_Calculus/03%3A_Discovering_Derivatives/3.10%3A_Linear_Approximations_and_Differentials

Web ResultJan 28, 2023 · the linear approximation, or tangent line approximation, of \(f\) at \(x=a\). This function \(L\) is also known as the linearization of \(f\) at \(x=a.\) To show how useful the linear approximation can be, we look at how to find the linear approximation for \(f(x)=\sqrt{x}\) at \(x=9.\)

**DA:** 24 **PA:** 45 **MOZ Rank:** 66