Question

Fill in the other coordinate for the line 3x-3y=9 (2,

Answer 1

We have that

the function of the line is
3x-3y=9
clear y
3x-9=3y
y=(3x-9)/3
y=x-3
for x=2
y=x-3----->y=2-3------> y=-1

the point is (2,-1)

the answer is
the y coordinate is -1