Find the Slope of the Line Containing the Pair of Points

Multiple Choice

Find the slope of the line containing the pair of points.
- $( 5 , - 7 )$ and $( 6,11 )$

A) 18
B) $\frac { 1 } { 18 }$
C) $- 18$
D) $\frac { 4 } { 11 }$