It becomes, it's negative now, keeps decreasing until we get to about x equals negative two, and then it seems that it's increasing. It's getting less and less and less and less negative. It looks like it's zero right over here. Then it just keeps increasing, gets more and more and more positive. So it does indeed look like at x equals negative two, we go from being concave downwards to concave upwards. Now a calculus-based justification is we could look at the second derivative and see where the second derivative crosses the x-axis. Because where the second derivative is negative, that means our slope is decreasing.