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Mathematics 21 Online
OpenStudy (anonymous):

Giving mEDAL!!! HELP ME ;[ ??? The relation {(2,11), (-9, 8), (14, 1), (5, 5)} is NOT a function when which ordered pair is added to the set? a. (8, -9) c. (0, 0) d. (2, 18)

OpenStudy (anonymous):

(2, 18) because then there would be two "2"'s in the first coordinate

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