The graph of a linear equation with one variable if graphed gives a line perpendicular to either of the axes. For example x + 1 = 0
=> x = -1
This is graphed as:
y + 2 = 0 is graphed as:
It becomes easier for us to describe graphically the linear equations that comprise of just one variable as calculations are reduced as compared to two variable equations. In these sorts of equations we would see that graphs represent a straight line that will be either perpendicular to x – axis or y – axis. That means line will be either a horizontal or vertical. Intersection point will be found on any of the two axes and the remaining axis stays parallel to the line with no intersection point.