Suppose U and V Are Differentiable Functions of X $$u ( 1 ) = 5 , u ^ { \prime } ( 1 ) = - 7 , v ( 1 ) = 6 , v ^ { \prime } ( 1 ) = - 2 \text {. }$$

Multiple Choice

Suppose u and v are differentiable functions of x. Use the given values of the functions and their derivatives to find the value of the indicated derivative.
- $$u ( 1 ) = 5 , u ^ { \prime } ( 1 ) = - 7 , v ( 1 ) = 6 , v ^ { \prime } ( 1 ) = - 2 \text {. }$$
$\frac { d } { d x } ( 3 v - u )$ at $x = 1$

A) - 13
B) 13
C) 23
D) 1