Find the Derivative of the Function at the Specified Point $f ( x ) = \frac { - 5 } { x }$

Multiple Choice

Find the derivative of the function at the specified point.
- $f ( x ) = \frac { - 5 } { x }$ at $x = 2$

A) $\frac { 5 } { 4 }$
B) $\frac { 4 } { 5 }$
C) $\frac { 2 } { 5 }$
D) $\frac { 5 } { 2 }$