Solve the Problem $y = - \frac { 4 } { 9 } x - 7$

Multiple Choice

Solve the problem.
-Find the slope of a line perpendicular to the line $y = - \frac { 4 } { 9 } x - 7$ .

A) $- 7$
B) 7
C) $- \frac { 4 } { 9 }$
D) $\frac { 9 } { 4 }$