Find the slope of the line that passes through the points (2 , 0) and (2 , 4).

[tex]\text {Slope = } \dfrac{Y_2-Y_1}{X_2-X_1} [/tex]

[tex]\text {Slope = } \dfrac{4-0}{2-2} = \dfrac{4}{0} = \infty[/tex]

The graph is a vertical line , x = 2