Chapter 11 - Vectors and Vector-Valued Functions - 11.1 Vectors in the Plane - 11.1 Exercises - Page 767: 3

See drawings

We make two drawings: on each of them we draw $x$- and $y$-axes and mark two points $P$ and $Q$. Connect them by a segment. In order to represent the vector $\overrightarrow{PQ}$, in the first drawing we place an arrow directing from $P$ to $Q$. In order to represent the vector $\overrightarrow{QP}$, in the second drawing we place an arrow directing from $Q$ to $P$.