Component Description of Vectors
I define vectors in terms of their components in the plane. I also show how to add vectors in component form, and how to multiply them by scalars. I then show how to calculate the magnitude of a vector.
The following resources can be used to further understand this topic:
Video: Vector Addition
Video: Scalar Multiplication
Video: Magnitude of Vectors
Online Activity: Component Description of Vectors (GeoGebra)