What's the length of AB?

A (-1,-1)
B (8,2)
I know it's some simple formula, I think the distance formula or something.. but I forgot it.

2007-09-05 12:37:40 · 1 answers · asked by pepsi 2 in Science & Mathematics ➔ Mathematics

x increases 9, y increases 3

l squared = 9 * 9 + 3 * 3 = 81 + 9 = 90

distance = 3 x square root of 10

2007-09-05 12:49:40 · answer #1 · answered by Beardo 7 · 0⤊ 0⤋

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