### Home > APCALC > Chapter 9 > Lesson 9.3.1 > Problem9-86

9-86.

$\overrightarrow { A B }$ is the correct notation for either a ray or a vector. Compare and contrast ray $\overrightarrow { A B }$ with vector $\overrightarrow { A B }$. How are they the same; how are they different? Include diagrams in your answer.

A vector has magnitude and direction. What about a ray?