Okay, here we have this:
Considering that the provided function passes the vertical line test, which states that a set of points in the plane is the graph of a function if any vertical line intersects the curve only at one point. And that the set of input values is called the domain, and the set of output values is called the range.
We obtain the following:
The relation is a function. Every input in the domain has exactly one output in the range.
