Which two features identify a vector?

1. A vector is drawn as a directed line segment with an arrowhead. 2. The length of that segment is its magnitude. 3. The way the arrowhead points is its direction. 4. The starting point is not part of the identity, which is why a vector can be slid to the origin. _Source: OpenStax Precalculus (CC BY 4.0), Ch 8 "Further Applications of Trigonometry", section 8.8 Vectors_