document.write( "Question 814445: Find the distance between the points R(-4,1) and S(2,7) \n" ); document.write( "
Algebra.Com's Answer #490317 by TimothyLamb(4379)\"\" \"About 
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use the pythagorean theorem on the square of the differences in x and y
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\n" ); document.write( "d = sqrt( (2+4)^2 + (7-1)^2 )
\n" ); document.write( "d = sqrt( (6)^2 + (6)^2 )
\n" ); document.write( "d = sqrt( 36 + 36 )
\n" ); document.write( "d = sqrt( 72 )
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\n" ); document.write( "d ~= 8.485
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