having troulbe with this on can you show how to it

Question

Determine which two equations represent parallel lines.
(a) y = x + 1
(b) y = x – 4
(c) y = 3x + 8 x (d) y = 3x – 1

Answer 1

sorry heres the whole question
having troulbe with this on can you show how to it
Determine which two equations represent parallel lines
Y=3/7x+1
Y=-7/3x-4
Y=3x+8x
Y=3x-1

Answer 2

If the third equation is supposed to be
Y = 3x + 8, rather than
Y = 3x + 8x,
then the last two equations have the same slope.

For equal slopes, equations written in the form y = mx + b must have the same value of m.