We don't know what is actually going on at that point, so we can't make any strong statement. So with that out of the way, let's just do a quick example, just to see if this has gelled. Let's say that I have some twice-differentiable function h. And let's say that I tell you that h of eight is equal to five. I tell you that h prime of eight is equal to zero. And I tell you that the second derivative at x equals eight is equal to negative four. So given this, can you tell me whether the point eight comma five, so the point eight comma five, is it a relative, is it a relative minimum, relative minimum maximum point, or not enough info? Not enough info or inconclusive.