Answer:
The problem is asking for a line that is parallel to x = 0, and pass though the point (-2;-1). If the line is parallel to x = 0, that means that is a vertical line, because that reference is the y-axis.
So, all vertical lines just have one variable, because the only variate in one variable. For a general vertical line, the equation is [tex]x = k[/tex] , where k is a real number through which the line pass through. If the problem says that the line pass through (-2;-1), then ,k= -2 and the linear equation is x = -2 , that is, a vertical line, parallel to x = 0 and pass through (-2;-1).
