That was the whole point of this video. And f of 1 is equal to what? f of 1, let's go back to our original function, is 3 times 1. 1 to the 4th is just 1. 3 times 1 minus 4 plus 2. So it's 3 times 1 minus 4 times 1, which is minus 1 plus 2. Well, that's just a positive 1.