Question

How do you graph `x<y`?

Answer 1

graph{x< y [-10, 10, -5, 5]}

See below:

Explanation:

First and foremost, a < or > graph always uses a dashed line.

Now, we assume `x=y` and start plotting points.

The graph `x=y` is the same as the graph `y=x` by symmetric property, and here is the graph for that:
graph{y=x [-10, 10, -5, 5]}

Assume now, that `x<=y`.
Pick a point and test it; `(-3,2)`, for example.

Since `-3<2`, we find the point and shade the side of the line containing that point. Then, we change the solid line to a dashed line:
graph{x< y [-10, 10, -5, 5]}