Question

What is the domain of x=-4?

Answer 1

`{-4}`

Explanation:

The equation `x=-4` defines a relation, not a function, since any point `(-4, y)` is in its graph.

The only value of `x` for which the relation contains a point is `-4`. So the domain is `{-4}` and the range is `RR`

graph{x=-4+0.0000001y [-10, 10, -5, 5]}