Which table represents a nonlinear function?

I've Answered a question like this in the past (though it was linear) examples of a linear table are x:1234

and then y: - 3 - 5 - 7 - 9. so for a non linear table it would have to be odd numbers x:1234

y:3 6 12 24

remember my example and dont use 1234, - 3 - 5 - 7 - 9 ok?