00:01
Ok, so in this exercise we have the equation y equal to mx plus b.
00:09
Now, let's study this equation.
00:11
Well, before we go on, let's keep in mind that this one is just the equation of a line perfect.
00:23
Now, let's give names to capital m and b.
00:27
Well, what is m? m is called the slope of the line perfect.
00:40
Now, the important thing about m is this.
00:43
If m is equal to 0, then the line is parallel to the y -axis, to the x -axis.
01:05
Ok, perfect.
01:07
More precisely, we are going to have something like this.
01:10
If this one is our cartesian plan and b is here, then our line is going to look like this.
01:20
Ok, now, the other important thing is this.
01:25
If capital m is greater than 0, then the line is increasing.
01:36
So, we have something like this...