Question

If a ia a real number, what is the parallel to x- axis and the line x=a?​

Answer 1

There are infinite possibilities of this...

Line parallel to x axis :

y= any real number

Line parallel to x=a :

x= any real number

Answer 2

Answer:

The line x = a is parallel to the Y-axis passing through (a, 0). If a > 0, then the line will be a distance of a units to the right of the Y-axis.