document.write( "Question 62898: Write the slope-intercept form of the equation of the line through (-1,2) that is perpendicular to the line x+3y=4 hope you can help, thanks \n" ); document.write( "
Algebra.Com's Answer #43730 by checkley71(8403)\"\" \"About 
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FIND THE SLOPE OF THE EQUATION X+3Y=4 THUS
\n" ); document.write( "3Y=-X+4
\n" ); document.write( "Y=(-1/3)X+4/3 THUS THE SLOPE IS -1/3
\n" ); document.write( "A LINE PERPENDICULAR TO THIS LINE MUST HAVE A SLOPE THAT IS THE NEGATIVE RECIPRICLE OF THIS SLOPE THUS THE NEW SLOPE IS 3
\n" ); document.write( "SO Y=3X+b NOW SUBSTITUTING THE X & Y VALUS FOR THE POINT WE GET THE Y INTERCEPT
\n" ); document.write( "2=3*-1+b
\n" ); document.write( "2=-3+b
\n" ); document.write( "2+3=b
\n" ); document.write( "5=b THUS WE HAVE THE FORMULAR FOR THIS LINE
\n" ); document.write( "Y=3X+5 THAT HAS A SLOPE OF 3, A Y INTERCEPT OF 5 & PASSES THROUGH THE POINTS
\n" ); document.write( "(-1,2)
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