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Which set of ordered pairs represents a function?

{(3,6), (3, 1), (9,0), (2, 2)}

{(2,-5), (-3, 6), (-1, -8), (-3,-4)}

{(4, -7), (-2, -1), (-7,4), (9, -1)}

{(3,8), (-2,-9), (1,4), (1,9)}

Respuesta :

SDCInfinity

Answer:

{(4, -7), (-2, -1), (-7,4), (9, -1)}

Step-by-step explanation:

Every other set of ordered pairs has an x-value that has more than one y-value. This is against the rules of a function. Therefore, {(4, -7), (-2, -1), (-7,4), (9, -1)} represents a function.

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