Type the list of points as shown to the right.

Context Panel: Plots≻Plot Builder
Options: Style≻line
Options: Range from/to≻0, 6

Type the equation of the vertical line.

Context Panel: Plots≻2-D Implicit Plot≻$x\,\text{?}$

Execute the plot command shown to the right.

$\mathrm{plot}\left(\left[\left[1\,2\right]\,\left[1\,5\right]\right]\,\mathrm{style}\=\mathrm{line}\,\mathrm{view}\=\left[0..2\,0..6\right]\right)$

Use the implicitplot command as shown to the right.

$\mathrm{plots}\left[\mathrm{implicitplot}\right]\left(x\=3\,x\=2..4\,y\=-5..5\right)\;$