Now what about this thing right over here,.47? Well,.47, that's gonna get us, that's roughly.5. So negative six times.5 is negative three. 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.