Question

Write the equation of the vertical line that contains the point (-5,-4)

Answer 1

If it is a vertical line then all we need is the 'x' value which is -5.
So the equation is simply y=-5
(shouldn't there be an x value in there, too?)

Answer 2

Gee I'm still uncertain about that answer and now I made a graph.

Answer 3

According to this website http://www.mathsisfun.com/equation_of_line.html, the equation should be x = -5