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3 votes
Helpppppppppppppppppp​

Helpppppppppppppppppp​-example-1

2 Answers

12 votes
There is a repeating value there for it is not a function.
answered
User Mong Zhu
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9.1k points
0 votes

Answer:

The mapping diagram above is not a function since -4 in Set A where there is duplication.

Explanation:

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User Usuario
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