Now over here, our velocity is negative four meters per second. So one way to think about it is we're moving four meters per second backward. So I'll write backward. Now this is interesting, this last point. Because you might be tempted to say, all right, I'm oscillating, I'm going up, then I'm going down, then I'm going back up. Maybe I'm moving forward here. But remember, what we're thinking about here, this isn't position versus time, this is velocity versus time.