Since in each option, each input is mapped to only one output, all the options are correct.
When a relationship represents a function?
A relationship represents a function when each input is mapped to only one output.
In this problem:
- For the Venn sets, only one line departs each value of x, hence it is a function.
- For the ordered pairs, each value of x(2, 5 and -4), is mapped to only one value of y, hence it is a function.
- The graph has no vertically aligned points, hence it is a function.
Thus all the options are correct.
More can be learned about functions at https://brainly.com/question/12463448
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