Does a ray have two endpoints?

Answer 1

A ray only has one endpoint, and looks like this:

#--------------->

where the # is an endpoint.

#

\

\

\

\

V

could also roughly represent a ray. A ray just has an end point and goes on forever in one direction, like if you took a line and cut one end of it off. A ray could be drawn through any two points or any number of co linear points.