Question

are the lines y = 12 and x = 12 parallel? explain your reasoning.
no; one is horizontal and one is vertical.
yes; both are vertical lines.
no; both represent the same line.
yes; both are horizontal lines.

Explanation:

The line $y = 12$ is a horizontal line where for all $x$-values, $y$ is 12. The line $x = 12$ is a vertical line where for all $y$-values, $x$ is 12. Parallel lines have the same slope. A horizontal line has a slope of 0 and a vertical line has an undefined slope. So they are not parallel.

Answer:

No; one is horizontal and one is vertical.