### Find the equation of a straight line which is parallel to y-axis, and is at a distance of *b* from y-axis.

**Answer:**

x = *b*

**Step by Step Explanation:**

- If a line is parallel to the y-axis and is at a distance of
from the x-axis as shown in the figure below, we observe that the abscissa of all the points on the line is constant and equal to*b*.*b* - This means that the equation of this line should be x =
*b*.