00:01
I'm going to use my best approximation here because what we're looking at is the graph of f.
00:07
And i can see a few points in here, like 0, negative 7.
00:13
And then we also have a point in between here that appears to be, all right in here, negative 2, negative 5.
00:23
And then changes here at negative 4, negative 3.
00:31
And let me just circle the correct answer.
00:34
Negative 2, negative 5 appears to be the point of inflection.
00:41
And the reason why i wouldn't, i'll just stop right there, is because that is where we change concavity.
00:53
So what you're looking for is that to the left, you have this downwards u shape...