Chapter 7 - Applications of Trigonometry and Vectors - Section 7.4 Vectors, Operations, and the Dot Product - 7.4 Exercises - Page 332: 7

We can add the tail of the original vector $c$ to the tip of another vector $c$, and the resultant vector is the vector $2c$.

To sketch the vector $2c$, we can add the tail of the original vector $c$ to the tip of another vector $c$, and the resultant vector is the vector $2c$. The vector shaded red in the sketch below is the vector $2c$.