Differentiate the Function and Find the Slope of the Tangent $$g ( x ) = \frac { 8 } { 9 + x } , x = 4$$

Multiple Choice

Differentiate the function and find the slope of the tangent line at the given value of the independent variable.
- $$g ( x ) = \frac { 8 } { 9 + x } , x = 4$$

A) $\frac { 8 } { 169 }$
B) $- \frac { 8 } { 13 }$
C) $\frac { 8 } { 13 }$
D) $- \frac { 8 } { 169 }$