S of 2 at 2 seconds is going to be equal to 2 squared over 2. That is, let's see, that's 4 over 2. That's going to be 2 minus 6 times 2. So minus 12 plus C is equal to negative 10. Is equal to negative 10. Let's see, we get 2 minus 12 is negative 10, plus C is equal to negative 10. You add 10 to both sides, you get C, in this case, is equal to 0.