Question: Decide whether each relation defines a function, and give the domain and range. {(1, 1), (1, -1), (0, 0), (2, 4), (2, -4)}

Decide whether each relation defines a function, and give the domain and range.

{(1, 1), (1, -1), (0, 0), (2, 4), (2, -4)}

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