Question

Which of the following equations represents a line parallel to the y-axis?

• A. y = 10
• B. x = 5
• C. y = -8
• D. x = -2

Answer 1

Answer: (B), (D)

The correct options are
B x = 5
D x = -2

If a line is parallel to the y-axis, its distance from the y-axis is the same and it is represented by x = c (c is a constant value).

Hence,
x = 5 and x = -2 are equations of lines parallel to the y-axis.