Find the distance between points -10 6 and -4 -4?

Answer 1

The Euclidean distance is sqrt{[-10 - (-4)]2 + [6 - (-4)]2}

=sqrt{62 + 102} = sqrt(36 + 100} = sqrt(136) = 11.66 (to 2 dp)

There can be other metrics defined on the space - the Minkovsky, or Manhattan metric, is one where the distance is the sum of the steps in the two orthogonal directions required to go from one point to the other. In this case that would be 6 + 10 = 16 units. (The name comes from the grid-like pattern of the Manhattan roads.)