{(5,,,3)} is this a function. explain why?

No, this is not a function because there is two x values there can't be two x values to be constant and true

Hi there!

This isn't a function, because the x value of 5 (or domain value) is paired with multiple y values (range values).

Since both the coodernates (5,4) and (5,3) have 5 as the x values, then it isn't a function.

Hope this helps!