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plz help....Which relation describes a function?

A)
{(0, 0), (0, 2), (2, 0), (2, 2)}


B)
{(−2, −3), (−3, −2), (2, 3), (3, 2)}


C)
{(2, −1), (2, 1), (3, −1), (3, 1)}


D)
{(2, 2), (2, 3), (3, 2), (3, 3)}

Respuesta :

the answer is B. {(-2,-3),(-3,-2),(2,3),(3,2)}
because the domain does not contain any repeated values.
Becky81

The answer is B

a function is a set of ordered pairs such that for each domain element there is only one range element the set of ordered pairs{(-2,-3),(-3,-2),(2,3)(3,2) is the only set that does not pair a domain elemnt with two or more range elements.

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