A **ray** is part of a line. It has an endpoint on one side and on the other side, it extends without bound.

We can name a ray using the two points on the ray with an arrow on top. The ray above can be called as \(\overrightarrow{RY}\).

A **ray** is part of a line. It has an endpoint on one side and on the other side, it extends without bound.

We can name a ray using the two points on the ray with an arrow on top. The ray above can be called as \(\overrightarrow{RY}\).