Answer: Yes.
Explanation:
Yes, the given relation is a function. Each x-coordinate, or input, has exactly one y-coordinate, or output. This is a function.
We can also graph all of the given points. See attached. This graph passes the vertical line test, so the relations could be a function. The vertical line test is a vertical line held up to the graph, and this line can only be intercepted once at a time.
We see that this is a function and it appears that every y-value is the given x-value squared.