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Mathematics 9 Online
OpenStudy (anonymous):

What change is needed to make this relation a function? {(1, 2), (2, 5), (3, 8), (3, 9)}

OpenStudy (mathmale):

This question goes back to the definition of a function (which I encourage you to review). You are given four different points. Are the x-coordinates all different, or are they not?

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