Oh, ok. I think I understand now where what I thought was wrong, I was going define f(x) = g(-x), and then graph f(x+2) which would be sliding the graph f(x) to the left 2 units, but, that isn't g(-x+2) as f(x +2) = g(-(x+2)) = g(-x-2). I would have had to go f(x - 2) = g(-x +2) (as you said)...