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NeTakaya
3 years ago
12

Which relations are functions ​

Mathematics
1 answer:
likoan [24]3 years ago
4 0

The first, third, and fourth choices are functions. A relation is a function when x does not repeat. For the second choice, -4 repeats. Therefore, it is not a function. The other choices do not repeat an x-coordinate, so they are correct.

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