*___*___*___*___*___*___* I *_______*
you join the dots without lifting your pen.
It is not possible. Several (4) straight lines without lifting your pen is possible but 1 line is not.
In the warriors series,by Erin Hunter, four will become two means the four forest clans, will join together in two groups. RiverClan and ShadowClan will join to make Tigerclan. WindClan and ThunderClan will also join together to make one big clan, called LionClan.
When two lines meet to form an angle the lines are intersecting.