Distance - In the mathematical subfield of graph theory we can define a notion of distance between two vertices in a graph. The extent or account of space between two objects or points.
Find the distance between
A(-2, 3) and B(8, -1).
d = SQRT[(8 - (-2))^2 + (-1 - 3)^2]
Simplify.
d = SQRT[(10)^2 + (-4)^2]
d = SQRT(100 + 16)
d = SQRT(116)
d = 10.77units
http://library.thinkquest.org/20991/geo/coordgeo.html#distance
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