Step 1:
The given relation is represented by the table
$$
\begin{array}{|c|c|c|c|c|}\hline x & {0} & {1} & {2} & {3} \\ \hline y & {0} & {1} & {4} & {9} \\ \hline\end{array}
$$
This means that the pairs (x, y) are (0, 0), (1, 1), (2, 4), and (3, 9).
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