Answer:
-1
Explanation:
2x - 2y = -12
-2y = -2x - 12
y = x + 6
m = 1
The equation of a perpendicular line to y = x + 6 must have a slope that is the negative reciprocal of the original slope.
m perpendicular = - 1/1
Simplify the result
m perpendicular = -1
So, the answer is -1