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F={(-1, 2), (3, 2), (4,2), (0, 2)} Is Fa function and why/why not?

F={(-1, 2), (3, 2), (4,2), (0, 2)} Is Fa function and why/why not?-example-1
User Andriej
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1 Answer

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Answer:

yes it is a function A

Explanation:

User Nicola Gallazzi
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