I was helping a young student the other day on how to plot some very basic graphs and when I wanted to plot x=2 I just couldn't.
I have tried it in many ways but the most of the time what I get is a y=2 graph.
When I type this for example:
I get a line that goes from (0,-2) to (2,0)
Any help on how to plot this really basic graph would be really aprecciated.