Question

question
which equation represents a line which is parallel to the y-axis?
answer
$\bigcirc x=6$
$\bigcirc x=4y$
$\bigcirc y=-1$
$\bigcirc y=x+1$

Explanation:

Step1: Recall vertical line property

Lines parallel to the y-axis are vertical, with the form $x = k$ where $k$ is a constant.

Step2: Match options to the form

Check each option:

• $x=6$ fits $x=k$ (constant $k=6$)
• $y=-1$ is horizontal (parallel to x-axis)
• $x=4y$ is a slanted line
• $y=x+1$ is a slanted line

Answer:

A. $x = 6$