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OpenStudy (anonymous):
Is {(–2, 0), (–1, 3), (0, –2), (3, –1)} a function?
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mathslover (mathslover):
yes it is
OpenStudy (anonymous):
No sorry disagree: the definition of a function is that it has one output for any input. if you draw this on a graph then it look like a parabola slightly on its side. so there are 2 values for x in many places.
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