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OpenStudy (anonymous):

Which relation is a function? (Points : 3) {(2, 4), (2, 7), (2, 11), (2, 15)} {(1, 3), (5, 3), (6, 7), (5, 0)} {(0, 7), (4, 8), (0, 9), (6, 10)} {(6, 0), (7, 14), (2, 5), (2, 5)}

OpenStudy (anonymous):

the second one

OpenStudy (anonymous):

because there can not be more than one x value in a function

OpenStudy (anonymous):

thank you

OpenStudy (anonymous):

no problem

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