Find the Slope of the Line Passing Through the Pair $( - 12 , - 13 )$

Multiple Choice

Find the slope of the line passing through the pair of points or state that the slope is undefined.
- $( - 12 , - 13 )$ and $( - 3 , - 2 )$

A) 1
B) $\frac { 9 } { 11 }$
C) $- \frac { 11 } { 9 }$
D) $\frac { 11 } { 9 }$