Which relations are functions

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asked Nov 6, 2020 53.2k views

1 Answer

BCran · Answer 1 · 2020-11-13T07:48:37+0000

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.

Which relations are functions

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