00:01
I believe all i need to know in this problem is that i have this ordered pair over here at negative 2, 7.
00:10
And this ordered pair over here of 4, 1.
00:16
And the graph follows this behavior.
00:21
And i can answer all the questions.
00:23
So to start out with a maximum, what you want to do is give the y value.
00:28
So the maximum is 7.
00:30
And then it says at x equals.
00:32
That's where you give the x -coordinate negative 2.
00:36
Same thing with the min.
00:37
You want the lowest point.
00:40
And it really should say relative min.
00:42
But that's ok.
00:43
We'll just go with the only min that's showing is y equals 1.
00:47
And that occurs at x equals 4.
00:50
So that helps me talk about increasing.
00:54
Because i like telling my students that a max happens where you go from increasing to decreasing.
00:59
And a min happens when you go from decreasing to increasing.
01:02
So where are we decreasing? in interval notation, we would write from negative infinity until the x -coordinate of the maximum...