Find the Slope of the Line Containing the Two Points $- \frac { 15 } { 13 }$

Multiple Choice

Find the slope of the line containing the two points.
-(8, -4) and (-7, 9)

A) $- \frac { 15 } { 13 }$
B) $\frac { 13 } { 15 }$
C) $\frac { 15 } { 13 }$
D) $- \frac { 13 } { 15 }$