Question

How do you graph `x=3` on graphing calculator?

Answer 1

A graph of `x=3` would simply be a vertical line through `x=3`. Because there is no y value or y intercept, we assume the slope in undefined, therefore, the line goes strictly vertically through `x=3`.

Just for future reference, if you were to have an equation with `y=`, let’s say `y=4`, the slope would be zero, and the graph would be a straight line horizontally through `y=4` (4 on the y axis).