Which pair of lines are parallel? Select all that apply.

Question

A.y=3-2x
y=2x-3

B.y=2x-1
y-2x=8

C. y-4x=6
y+4x=-6

D. y=-3x+1
y+4x=x-1

I think that its A and D

Answer 1

write in form y = m x + b
if m is the same, same slope, parallel
eg
A.y=3-2x
y=2x-3
====================
that is
y = -2 x + 3
y = +2 x - 3
-2 is NOT +2 !!!
NOT parallel

B. works m = 2