### Video Transcript

What is the name of this shape?

To solve this problem, we’ll need
to think about the features of the shape. One side of the shape has an
endpoint. The other side has an arrow,
indicating this shape is going on in one direction. What word do we know that could fit
this description? A ray.

A ray is a part of a line that has
an endpoint. More specifically, we could call
this ray, ray 𝐵𝐴. Ray 𝐵𝐴 moves from endpoint 𝐵
through point 𝐴 and then continues on to infinity.