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Question 814445: Find the distance between the points R(-4,1) and S(2,7)
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! use the pythagorean theorem on the square of the differences in x and y
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d = sqrt( (2+4)^2 + (7-1)^2 )
d = sqrt( (6)^2 + (6)^2 )
d = sqrt( 36 + 36 )
d = sqrt( 72 )
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d ~= 8.485
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