Is (3,4),(5,1)(6,3),(6,4) a function?

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Answer 1 · 2015-10-31T02:01:07

No

A function can't have two outputs for one input. There can however be two inputs for one output. So (6,3),(6,4) can not be a function.

Answer 2 · 2015-10-31T02:02:12

No

A function has x-values that map to only one y-value.

In your example, the x-value of 6 maps into two different y-values, so it is not a function.