00:01
Okay, so it says, consider the graphs f of x and g of x below.
00:05
For each interval below, decide whether the average rate of change for f of x or g of x is greater over the particular interval.
00:15
So, from 2 .2 to 6 .1, when i'm looking at the greater average rate of change for the interval, this decreases.
00:32
And then it increases.
00:34
So we can say like it goes from 2 .2 to, i'm sorry, 2 .9 to 0.
00:44
And then it goes from 4 .0 up to 6 .1.
00:52
So we can say 2 .2 to 2 .9.
00:59
And then it goes down to 0, 4 .0, 0, and then 6 .1, and then 4 .9.
01:22
And the other one, the rate of change goes from 2 .2, 2 .9 to 6 .1 to 4 .9.
01:40
So 2 and 6 .1 times 2 .2 minus 6 .1 minus 2 .2 is 3 .9.
01:54
So 2 over 3 .9 is say 1 half.
02:03
It's approximately a half or 0 .51.
02:08
And then going down 2 .9 and then 4 minus 2 .2 .2 is 1 .2 is 1 .2 .2...