Which equation represents a line which is parallel to the y-axis?

Question

A. x=2

B. y=1

C. x=51​y

D. x=3y

Answer 1

B) y=1

a line parallel to the y axis is a flat horizontal line with slope = 0

general form of the linear equation is y=mx+b where m= slope and b= intercept

if m=0, then y=(0)x + b

and y=b, where b is a constant, and any real number, except 0, as y=0 is the x axis. y=0 is not parallel to the x axis, it is the x axis. Parallel lines never meet or intersect. So y=0 is not parallel to the x axis. y=1 is parallel to the x axis