Is the solution to the quadratic equation written below rational or irrational 0=2x^2+3x-10

The titanic is the answer

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