Answer:
The answer to your question is:
y = -2/3 x + 6 or 2x + 3y -18 = 0
Step-by-step explanation:
Point (-9, 12)
Perpendicular to y = 3/2 x -1/2
then slope = m = 3/2 but we change it, so m = -2/3
y -12 = -2/3 (x + 9)
3(y -12) = -2( x + 9)
3y - 36 = -2x - 18
General equation 2x + 3y -36 + 18 = 0
2x + 3y - 18 = 0
slope y-intercept 3y = -2x -18 +36
3y = -2x + 18
y = -2/3 x + 18/3
y = -2/3x + 6