Mapping diagram of a relation that is not a function

An example figure from the Mapping Diagram Generator.

A mapping diagram from x to y with inputs −2, 0 and 3, where 0 has arrows to both 4 and 6 — A mapping diagram of the ordered pairs (−2, 1), (0, 4), (0, 6) and (3, 8), with the inputs titled x and the outputs titled y. The input 0 has two arrows, one to 4 and one to 6.

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Answer key

Not a function: 0 goes to both 4 and 6.
Ordered pairs: (−2, 1), (0, 4), (0, 6), (3, 8)

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