Find the Slope of the Line Satisfying the Given Conditions $( 7 , - 7 )$

Multiple Choice

Find the slope of the line satisfying the given conditions.
-through $( 7 , - 7 )$ and $( 6,9 )$

A) 16
B) $- 16$
C) $- \frac { 1 } { 16 }$
D) $\frac { 1 } { 16 }$