ELI5: Explain Like I'm 5

Path graph

A path graph is like a very long line that you draw. Imagine drawing a line on your paper that goes from one end to the other without any breaks. Now imagine that each point on that line is like a stop on a train ride. You can start at one end and visit each stop along the way until you reach the other end. A path graph is like that line with all those stops. Instead of a train, we can use numbers or letters to visit each stop on the line. This can be helpful when we are studying things like routes or timelines, and we want to show everything in a very straight-forward way.