document.write( "Question 670452: what equasion is perpendicular to 3x+y=1 and passes through the point (-2,1)? \n" ); document.write( "
Algebra.Com's Answer #416930 by mananth(16946)\"\" \"About 
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3 x + 1 y = 1
\n" ); document.write( "Find the slope of this line
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\n" ); document.write( "1 y = -3 x + 1
\n" ); document.write( "Divide by 1
\n" ); document.write( " y = -3 x + 1
\n" ); document.write( "Compare this equation with y=mx+b, m= slope & b= y intercept
\n" ); document.write( "slope m = -3
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\n" ); document.write( "The slope of a line perpendicular to the above line will be the negative reciprocal 1/3
\n" ); document.write( "Because m1*m2 =-1
\n" ); document.write( "The slope of the required line will be 1/3
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\n" ); document.write( "m= 1/3 ,point ( -2 , 1 )
\n" ); document.write( "Find b by plugging the values of m & the point in
\n" ); document.write( "y=mx+b
\n" ); document.write( "1 = - 2/ 3 + b
\n" ); document.write( "b= 5/3
\n" ); document.write( "m= 1/3
\n" ); document.write( "The required equation is y = 1/ 3 x + 5/ 3
\n" ); document.write( "m.ananth@hotmail.ca
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