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Mathematics 8 Online
OpenStudy (anonymous):

WILL MEDAL! Determine which relation is a function. A. {(–5, 1), (–5, 0), (–2, 1), (–1, 4), (6, 2)} B. {(–5, 1), (–2, 0), (–2, 2), (3, 4), (6, 2)} C. {(–5, 1), (–2, 0), (–1, 1), (2, 4), (6, 3)} D. {(–5, 3), (–2, 0), (–1, 2), (6, 4), (6, 3)} I think C or A idk

OpenStudy (blake57roger):

A

OpenStudy (blake57roger):

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OpenStudy (anonymous):

THANK YOU! UR AWSOME! Could u help me with a few more?

OpenStudy (blake57roger):

@Directrix

OpenStudy (blake57roger):

@Compassionate

Directrix (directrix):

@blake57roger Your posted answer of A is not correct.

OpenStudy (anonymous):

o, then what would u think? :)

Directrix (directrix):

The reason that option A is wrong is that in a function, the same x cannot be paired with two DIFFERENT y values for that x. Here, A. {(–5, 1), (–5, 0) -> -5 is paired with 1 AND also with 0. So, relation A is not a function. @mc.dc.co

OpenStudy (anonymous):

o, so a is out what about c?

Directrix (directrix):

You tell me. In option C, do you see the same x paired with two different y values for that x?

OpenStudy (anonymous):

B or D im pointing at

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