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OpenStudy (madhatter):
Is the relation a function? {(–3, –2), (12, 7), (8, 9), (12, 15)}
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OpenStudy (e.mccormick):
The definition of a function is, for any input (x) there is one and only one output (y). So, are there any points there where the x is the same but the y is different? If so, it is NOT a function.
OpenStudy (madhatter):
kk thanks
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