document.write( "Question 1027643: The line,L9,passes through the point (1,-4)and is parallel to the line y + x - 3 = 0, find the equation of L9 \n" ); document.write( "
Algebra.Com's Answer #642894 by mananth(16946)\"\" \"About 
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PARALLEL
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\n" ); document.write( "1 x + 1 y = 3
\n" ); document.write( "Find the slope of this line
\n" ); document.write( "make y the subject
\n" ); document.write( "1 y = -1 x + 3
\n" ); document.write( "Divide by 1
\n" ); document.write( " y = -1 x + 3
\n" ); document.write( "Compare this equation with y=mx+b
\n" ); document.write( "slope m = -1
\n" ); document.write( "The slope of a line parallel to the above line will be the same
\n" ); document.write( "The slope of the required line will be -1
\n" ); document.write( "m= -1 ,point ( 1 , -4 )
\n" ); document.write( "Find b by plugging the values of m & the point in
\n" ); document.write( "y=mx+b
\n" ); document.write( "-4 = -1 + b
\n" ); document.write( "b= -3
\n" ); document.write( "m= -1
\n" ); document.write( "Plug value of the slope and b in y = mx +b
\n" ); document.write( "The required equation is y = - x -3
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