Question

How do you graph `x=-4`?

Answer 1

This is a vertical line intersecting with the `x` axis at `(-4, 0)`

Explanation:

The intersection with the `x` axis is the point where `y=0`. We already know the `x` coordinate, so the point is `(-4, 0)`

There is no intersection with the `y` axis, since the line `x=-4` is parallel to the `y` axis, whose equation is `x=0`.

graph{y=1000000*(x+4) [-10, 10, -5, 5]}