It's a position vector.

And this position vector.

It's a position vector.

Either a position vector.

Vector f is just going to be this yellow position vector minus this green position vector.

It is this position vector minus that position vector gives you this one.

You have a position vector.

The normal vector dotted with any position vector specifying a position on the plane.

So my first position vector is the zero vector.

Sorry, it'll be a new vector position vector not a unit vector.

That's the vector in standard position.

And then vector b in standard position.

That's my next position vector right there.

That position vector will look like that.

And that position vector is going to be the vector k1.

Let's say it's specified by the position vector.

Let me draw the position vector like that.

You can specify this as a position vector.

I could draw the position vector like this.

Think of it is as a position vector.

Another way to view this is this green position vector plus that blue position vector that sits on the plane will clearly equal this yellow vector.

Let me call that position vector. I don't know.

Or it could be specified as a position vector.

And I'll write our position vector valued function first.

So let's say our position vector valued function is r.

So this is vector a in standard position right there.

This, all of a sudden, this isn't a position vector.

We could have a position vector that looks like this,

And when you say it's a position vector, you're implicitly saying this is specifying a unique position.

So vector a in standard position, I'd start at 0, 0

And if we think of this position vector, this'll be a

It's a position vector that specifies a point on the plane.

Now let's say that we have any another position vector function.

There is a position vector. Let me draw it like this.

That clearly saying logic can be specified by another position vector.