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Single Variable Calculus

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Linear Approximation of Square Root Function: $x$ = 9

SVCALC-81W4OX

Determine the linear approximation for $f(x)=\sqrt(x)$ at $x=9$.

A

$x$

B

$3+\cfrac{x-9}{6}$

C

$3-\cfrac{x-9}{6}$