00:01
Look at this graph, just pay close attention to the units.
00:03
So i'm just going to pick a few points on here, like here to here.
00:07
I'm not paying any attention to, you know, the number of units.
00:10
If you're looking from 70 to 60, so we can tell we're going down 10.
00:16
So as we get to the slope of the line, i'm going to be doing probably 60 minus 70.
00:23
So i like to go in the other direction, you know, sort of going this way.
00:29
And then pay close attention to the x coordinates as well.
00:33
So as i'm looking at that, it's going from 3 ,000 to 4 ,000, 3 ,000 to 4 ,000.
00:42
So again, since i started with 60, i need to start with a 4 ,000 minus 3 ,000.
00:49
So that's going to help us identify that we get negative 10 over 1 ,000, or the slope is, i mean, you could leave it as negative 1 over 100 or if you're good with decimals, negative 0 .01.
01:08
So that's going to help us find the answers for part a when they're asking us to do g of 4210 minus g of 4209.
01:29
We'll double check out the right numbers...