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OpenStudy (sweetzodiacpickle):
Is this function one-to-one? How do you know? (graph attached) Also, what is f(-1), f(2), and f(0)?
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OpenStudy (sweetzodiacpickle):
OpenStudy (evoker):
For graphs one to one is most easily tested using what is called the horizontal line test, that being if more than one points lies on the same horizontal line then the graph isn't one to one.
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