The correct answers are:
The line x = 0 is perpendicular to the line y = –3; all lines that are parallel to the y-axis are vertical lines; the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.
Step-by-step explanation:
The line x=0 is the x-axis. The line y=-3 is a vertical line. These two will be perpendicular by definition; x=0 has a slope of 0 while y=-3 has an undefined slope. Additionally, a horizontal line will always be perpendicular to a vertical line.
In order for a line to be parallel to the y-axis, it must have the same slope as the y-axis; this means it must be a vertical line.
In order for a line to be perpendicular to the y=axis, it must be a horizontal line. The line y=1 is a horizontal line that passes through 1 on the y-axis.