Find f () if f (n) = 3n.

1/3

1

3

The answer would either be 3,6, or 9

The most sensible way to get the answer is to do each of the represented individually.

So, at first you plug in n for 1/3, the you have to do the same things with the rest of options. Therefore you wil gradually get these answers : 3,6, 9.

I think it has become clear and you will figure it out. Regards!