Determine the Equation of the Line Described $( 3 , - 6 )$

Determine the equation of the line described. Put answer in the slope-intercept form, if possible.
-Through $( 3 , - 6 )$ , perpendicular to $- 3 x + 2 y = - 21$

A) $y = - \frac { 2 } { 3 } x$
B) $y = - \frac { 3 } { 2 } x - 12$
C) $y = - \frac { 2 } { 3 } x - 4$
D) $y = \frac { 2 } { 3 } x + 4$