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Which relation is a function?
O {{7, 12), (1, -5), (3, -10), (2, -5)}
O {(-3, 4), (-2, 5), (0, 9), (0, 12)}
{(1, 2), (1, 5), (1, -1), (1, 4)}
{(8, -1), (2, -1), (3, 8), (2,5}

Respuesta :

SaltySpark

Answer:

The first one: {{7, 12), (1, -5), (3, -10), (2, -5)}

Step-by-step explanation:

Functions can't have repeating x values. Each x has to have its own y value.
The first one because X does not repeat

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