Which of the following statements correctly describes the line given by the equation $y = -2$?

It is a horizontal line with a slope of 0.

It is a vertical line with a slope of 0.

It is a horizontal line with an undefined slope.

It is a vertical line with an undefined slope.

A line passes through the points $(1, -6)$, $(1, 0)$, and $(1, 4)$. Which of the following best describes this line?

A vertical line with the equation $x = 1$.

A horizontal line with the equation $y = 1$.

A vertical line with an undefined slope and equation $y=1$.

A line with a positive slope passing through the origin.