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Mathematics
OpenStudy (anonymous):

The domain of the following relation: R: {(−4, 8), (8, 10), (5, 4), (1, 6), (5, −9)} is {8, 10, 4, 6, −9} {−4, 1, 5, 8} {−4, 8, 5, 1, 5} No domain exists

OpenStudy (blurbendy):

The domain are all your x values in { (x, y), (x2, y2), (x3, y3) ... }

OpenStudy (blurbendy):

it's also a set, so order doesn't matter, however, you cant have any duplicates, so c is obviously not correct.

OpenStudy (anonymous):

so B? @blurbendy

OpenStudy (blurbendy):

yup, good job

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