document.write( "Question 441784: line that passes through the point (1,-3) and is parallel to the line 7x + y = -5.
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Algebra.Com's Answer #304818 by sudheerb(5)\"\" \"About 
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Given equation of line is 7x + y = -5.
\n" ); document.write( "It is in the form of ax + by = c. Slope of this line is -a/b.
\n" ); document.write( "Slope of 7x + y = -5 is m = -7.
\n" ); document.write( "We know that slopes of two paralel lines are same.
\n" ); document.write( "Therefore the slope of line parallel to line 7x + y = -5 is -7.
\n" ); document.write( "The required line also passes through point (1,-3).
\n" ); document.write( "Therefore equation of line passing through (x1,y1) and having slope m is
\n" ); document.write( "y - y1 = m(x - x1)
\n" ); document.write( "Here (x1, y1) = (1,-3) and m = -7.
\n" ); document.write( "y - (-3) = (-7)(x-1)
\n" ); document.write( "y+3 = -7x + 7
\n" ); document.write( "Subtract 3 from both sides of equation
\n" ); document.write( "y + 3 - 3 = -7x + 7 - 3
\n" ); document.write( "y = -7x + 4
\n" ); document.write( "Add 7x to both sides of equation
\n" ); document.write( "7x + y = -7x + 4 + 7x
\n" ); document.write( "7x + y = 4 is the equation of the line.\r
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\n" ); document.write( "\n" ); document.write( "For more help on math, click here http://www.edurite.com/question-answer/7 \n" ); document.write( "
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