This is going to be nowhere close to being negative. This is definitely going to be positive. So P prime prime of 0.4725 is greater than zero. So the fact that the second derivative is less than zero, that means that my derivative is decreasing, my derivative, my first derivative is decreasing when x is equal to this value, which means that our graph, our function is concave downwards here. Concave, concave downwards. And concave downwards means it looks something like this. And so, and you can see when it looks something like that, the slope is constantly decreasing.