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Which set(s) represents a function?
{(1, 3), (4, 5), (4,9), (6, 19)}
{(-5, 6), (-3, 13), (-14, 30)}
{(12, 12), (12, 13), (12, 14)]
{(1, 2), (2, 4), (3, 6), (1, 2)]
(8, 12), (9, 12). (10, 12))
None pof these are functions.

Respuesta :

veeveejoys

Answer:

1, 2, 3

Step-by-step explanation:

If the y's (right numbers have more than one number its not a function) hope this helps! :)

ncsftw

Answer:

All except the 3rd one {(12, 12), (12, 13), (12, 14)} are functions

Step-by-step explanation:

In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y.

This means that as long as some X does not give different Y values it is a function.

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