Question 229852
Find the pair of parallel lines. 
(1) 12y + 6x=2
m = -1/2
(2) 6x-12y=2
m = +1/2
(3) -4y=-2x+2
m = +1/2 
which pair is it? 
(1) and (3)
(1) and (2)
(2) and (3)
2 and 3 have the same slope, m = +1/2, so they're parallel.