Find the Slope of the Line Through the Pair of Points

Multiple Choice

Find the slope of the line through the pair of points.
- $( - 1 , - 6 )$ and $( 7 , - 3 )$

A) $\frac { 8 } { 3 }$
B) $- \frac { 3 } { 8 }$
C) $\frac { 3 } { 8 }$
D) $- \frac { 8 } { 3 }$