An object, 2.0 cm high, is placed 5.0 cm in front of a concave mirror with a focal length of 10.0cm.
How large is the image and where is it located?

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