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List the ordered pairs from the Mapping Diagram below and tell whether the relation is a function.

List the ordered pairs from the Mapping Diagram below and tell whether the relation-example-1
User Suann
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In order to list the ordered pairs, let's find each relation of input-output created by the arrows:

(-2, 15), (0, 10), (0, 20), (2, 5), (4, 20).

To be a function, every input must have only one corresponding output.

Looking at the mapping diagram and the ordered pairs, the input 0 has two corresponding outputs: 10 and 20.

Therefore the relation is not a function.

User Cylon Cat
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