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Help! Match each item in Column A to an answer in Column B. Which relations are functions and which are not functions?

Help! Match each item in Column A to an answer in Column B. Which relations are functions and which are not functions?
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Help! Match each item in Column A to an answer in Column B. Which relations are functions and which are not functions?

Help! Match each item in Column A to an answer in Column B. Which relations are functions-example-1
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User Izilotti
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Numbers 1, 2, and 3 are functions because each input has one output


Number 4 is not a function because 5 has two outputs


I hope that helps!
answered
User Roy Art
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