Question

Help me please due today!

Answer 1

no, yes, no, yes.

have a nice day x

Answer 2

No

Yes

No

Yes

Explanation:

In the first 1, the input 2 repeats which makes it not a function

in the second one each input is unique and does not repeat so it is a function

in the third one the input 1 repeats and makes it not repeat

And in the last one each input is unique

If inputs (the x value) repeat it's not a function