document.write( "Question 851646: write an equation of the line. write the equation in the form x=a,y=b or y=mx+b. through (-4,1) perpendicular to y=-3x+1 y=-3x+1, y-1=(3x)x-(-4)) i know i do the reciprocal but it is not coming out the answer is y=1/3x+7/3 how did they get that \n" ); document.write( "
Algebra.Com's Answer #512889 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Hi,
\n" ); document.write( "Line through (-4,1) perpendicular to \"y=highlight%28-3%29x%2B1+\", m = -3
\n" ); document.write( "***Using point-slope form, \"y+-+y%5B1%5D+=+m%28x+-+x%5B1%5D%29\"
\n" ); document.write( "\"+y+-1+=+highlight%281%2F3%29%28x%2B4%29\" |Note the \"negative reciprocal\" of -3 is 1/3
\n" ); document.write( " y = (1/3)x + 4/3 + 3/3
\n" ); document.write( " y = (1/3)x + 7/3
\n" ); document.write( " \n" ); document.write( "
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