Find the value of f ′ ( a ) f^{\prime}\left(a\right) for the function f ( x ) = 4 x − 1 f\left(x\right)=\sqrt{4x-1} when a = 2 a=2 .

Tangent Lines and Derivatives

2. Intro to Derivatives / Tangent Lines and Derivatives / Problem 3

Problem 3

Find the value of $f^{'} (a)$ for the function $f (x) = \sqrt{4 x - 1}$ when $a equals 2$ .

$\frac{\sqrt{7}}{2}$

$2 the square root of 7$

$\frac{4 \sqrt{7}}{7}$

$\frac{2 \sqrt{7}}{7}$