6x + 3y = -9
3y = -6x - 9
y = -2x - 4.5
slope (m1) of this line is -2
slope of the perpendicular line,
m2 = - (1/m1)
m2 = - (1 / -2)
m2 = 1/2
Answer:
If this is what your looking for, the answer may be:
-4y + 12
Hope this helps!
£4 and 720p, 12 times 60p equals 720p