What is the distance between the points of (7, 8) and (8, 0) on a coordinated grid

8 is the answer.

First you look at the numbers of (7,8) and (8,0) and see if they're in the same quadrant or not. Quadrant 1 is positive, positive, quadrant 2 is negative, positive, quadrant 3 is negative, negative, and quadrant 4 is positive, negative. Then look if they're both in different quadrants or same quadrants. If they're in the same quadrant, (quadrant 1) then you subtract. If they're in a different one, you add. So 8-0 is 8.