Answer:
the slope is -1
Step-by-step explanation:
m=y²-y¹/x²-x¹
m=(-3)-6/5-(-4)
m=-9/9
m=-1
Rotation through -90
(X, y) is image and after rotation in negative 90 or positive 270 we get the ans -y, x
x = 89
106 - 17 = 89