Vector basics:

 

How to find the magnitude of 2D vectors:

How to find the magnitude of 2D vectors:

 

How to find the dot product of 2 vectors:

 

How to find the angle between two vectors:

 

Finding a unit vector:

An introduction to finding the vector equation of a line:

More on vector equation of lines:

Checking if lines coincide, if they are parallel etc:

Finding the shortest distance from a point to a line:

Real life applications 1:

Real life applications 2:

A great playlist for the SL Vector topic: