Which point lies on the line y+3=(x-1)
a=(-1,-6)
b=(1,-4)
c=(1,-3 )
d=(2,9)
e=(0,0
f=(2,1)

y+3=(x-1)

A=(-1,-6)
-6+3 = -1-1
-3≠-2    no
 
B=(1,-4)
-4+3=1-1
-1≠0   no
 
C=(1,-3 )
-3+3 = 1-1
0=0   yes

D=(2,9)
9+3 = 2-1
12 ≠ 1    no

E=(0,0)
0+3 = 0-1
3≠-1  no

F=(2,1)
1+3 = 2-1
4 ≠ 1   no

point C=(1,-3 ) lies on the line y+3=(x-1) 

Yes, two vertical lines can be complementary