# Math

Which is NOT a function?
A.y-x=6
B.y=2x
C.x=-2
D.y+x=12

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1. Well, a function is a expression that uses one or more variables.

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2. oooh so would it be C?

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posted by Erika<3
3. @Emma Helper did you know you can help people on Brainly! I help people here and at brainy!

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4. yes, C
a function is a relation between two variables. C has only a single variable.

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posted by oobleck
5. Thank you @oobleck

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posted by Erika<3
6. Peer Tutor, oooh cool! I'll do that

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