document.write( "Question 356130: is y=-3x+3 perpendicular to y=1/3x +2/9 \n" ); document.write( "
Algebra.Com's Answer #254198 by Alan3354(69443)\"\" \"About 
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Yes, it is. The product of the slopes = -1
\n" ); document.write( "-3*(1/3) = -1
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