00:01
There are two points.
00:02
Let me just throw these points and there's a line on then.
00:07
So there's a line passing through this point.
00:09
Let's say the point a has the coordinates 3 -1 and the point b has the coordinates negative 5 and 4.
00:16
So for the parametric equation of this one, we have to first find the vectoral equation of this.
00:23
So what we need, we need a direction vector.
00:25
So we can define the direction factor from a to b.
00:29
So let's say this is the direction vector.
00:32
So b is equal to the factor from a to b.
00:35
And the vector from a to b, which is b minus a, that is negative 5, 4 and minus 3, 1, that is equal to negative 8 and 3...