Master Determining if a Mapping is a Function or Not

The video tutorial explains how to determine if a mapping is a function. It defines a function as a relation where each input uniquely maps to one output. The tutorial provides examples of valid and invalid mappings, emphasizing that inputs must not map to multiple outputs for a mapping to be considered a function.

Can different inputs map to the same output in a function? Justify your answer.

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What happens if an input maps to multiple outputs? Illustrate with an example.

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