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  • 12-01-2017
  • Mathematics
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Determine which relation is a function.

{(–4, 3), (–2, 3), (–1, 2), (2, 5), (3, 2)}


{(–4, 1), (–2, 3), (–2, 1), (–1, 5), (3, 2)}


{(–4, 1), (–2, 3), (–1, 2), (3, 5), (3, 2)}


{(–4, 1), (–2, 3), (–1, 1), (–1, 5), (3, 2)}

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charismatic charismatic
  • 12-01-2017
the first one because the first numbers don't repeat
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