How is naming a line segment different from naming a line? REALLY COFUSED NEED HELP!!!

Question

directrix · Answer

Do you have a particular line in mind? If so, post the diagram.

anonymous · Answer

a line has no ending points when a line segment does

directrix · Answer

@lavillainy  The question is not to differentiate a line segment from a line but to tell how to name a line segment (notation) and the same for a line.

anonymous · Answer

@directrix well sir here's a line for YOU <--------> 
AND here's a LINE SEGMENT *---------*

directrix · Answer

@lavillainy     You drew diagrams but did not mention how to name lines as opposed to naming segments.  

Until @ladie_love98 returns ...