Vector Equations and the Matrix Equation Ax = b – Lecture 2 (Linear Algebra)

Under the axiomatic definition, what makes something a vector?

1. A.It is an arrow with both a magnitude and a direction
2. B.It is an ordered list of real numbers written as a column
3. C.It is an element of a set that forms a vector space
4. D.It is a quantity that can be added to any real number