Question

Is the following relation a function?

Answer 1

If one x value gives 2 or more different y values then it is NOT a function.
If 2 or more x values give one y value, it IS a function.

Try now? :)

Answer 2

I think it's not...

Answer 3

Correct. :)

Answer 4

it is not a one-to-one function. so it would never be a function.

Answer 5

Thanks sooo much to you guys!

Answer 6

:)

Answer 7

???