Reflect over x=-3 if that's what you mean
Here, Take any two coordinates: (0, 1) & (4, -2)
Slope, m = y2 - y1 / x2 - x1
m = 1 - (-2) / 0 - 4
m = 3/-4
m = -3/4
In short, Your Answer would be Option D
Hope this helps!
"Supplementary angles" means "angles add to 180 degrees"
So if x is one angle and 67 degrees is the other, and the two angles are supplementary, then x+67 = 180
The answer is choice A