Question

A grid shows the positions of a subway stop and your house.The subway stop is located at (-6,1) and your house is located at (-2.-8).What is the distance to the nearest unit between your house and the subway stop?

10
20
15
7

Answer 1

If you just calculate the shortest distance:
c^2 = sqrroot(a^2 + b^2)
where
a = -5-0
b = 2 - (-7)
so
c^2 = sqrroot((-5)^2 + 9^2)
c^2 = 25 + 81 = 106
c = 10