00:01
So the first question is asking me to find the slope of the line segment.
00:05
So it's giving me coordinates.
00:08
So it's on a coordinate plane so i can find two points that gives me one and two.
00:17
And the other point they give me is 7 .6.
00:24
And i want to find the slope.
00:26
So remember slope is y2 minus y1 over x2 minus x1.
00:33
So if i want to label it, x1, x1, x2 y2 and i'm going to plug it right in so six minus two on top over seven minus one six minus two is four seven minus one is six and i you always simplify your slope four over six is two -thirds so my slope would be two -thirds the next part of the question let's move this up wants me to graph the following lines on a grid so do as best i can.
01:15
The first one is x equals three.
01:19
Now that is a vertical line that's saying i'm going to go to three on my x -axis.
01:24
So let's say three over.
01:26
And it's just going to be a vertical line just like that.
01:34
I'm going to do the next one.
01:37
Do it on the same thing.
01:38
It's going to be y equals negative two.
01:42
That's going to be a horizontal line.
01:43
So that's saying i'm going to go to negative two on my y.
01:47
And i'm going to draw a horizontal line just like that.
01:54
The next one is y equals 4x minus 3.
02:01
So for this is slope in intercept form.
02:04
So i'm going to go to negative 3.
02:06
You always go to your y intercept first.
02:09
So let's say right here.
02:11
And now i'm going to use my slope.
02:12
My slope is up 4 over 1.
02:15
So i'm going to go up 4.
02:16
Now i'm at positive 1 and over 1.
02:23
I'm going to go up 4 again and over 1 again, and up 4 again, over 1 again.
02:32
And you also want to go the other way.
02:33
So i'm going to go back to my y intercept and i'm going to go down 4 over 1.
02:39
And then you would connect the dots and you would have a line like that.
02:47
So let's start a new graph.
02:56
We have another one where it's y equals negative 2 thirds x plus 6.
03:02
Again, go to my y intercept six.
03:07
So let's say right there.
03:08
And now i'm going to go down to right three.
03:12
I'm always going to go to the right, no matter whether i go up or down.
03:14
So i'm going to go down two, right three...