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  • 14-11-2019
  • Mathematics
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Аноним Аноним
  • 14-11-2019

The first graph is a a function, because every vertical line crosses the line only once.

The second relation is not a function, because you're mapping multiple outputs for the same inputs.

The third relation is not a function, because again you're mapping multiple outputs for the same inputs 1 and 2.

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