If we could easily create machines or systems with no friction, what could we use them for?If we did use zero-friction machines for these purposes, how would our everyday lives change?

The correct answer is c

Are you asking about a street map usage  if so here is your answer  a street map for a very limited area could simply be a bit map or a .jpg image.  but a more general map would probably store the streets as vectors.  but you shouldn't assume that there is one way to do it