x 0, 1,2,3,4

y 1, 3,9,27,81
is this an function?
is this an nonlinear or linear/

1 answer

Yes, this is a function because each input value (x) corresponds to exactly one output value (y).

This is a non-linear function because the output values (y) do not increase or decrease at a constant rate as the input values (x) increase.