document.write( "Question 13363: Write the equation of the line that passes through the origin (0,0) and is parallel to x - 3y = 9. \n" ); document.write( "
Algebra.Com's Answer #6768 by askmemath(368)\"\" \"About 
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Equation of a line parallel to line ax+by+c= 0 is ax+by+k=0\r
\n" ); document.write( "\n" ); document.write( "So parallel line to x-3y=9 is x-3y+k = 0\r
\n" ); document.write( "\n" ); document.write( "But this line passes through (0,0)\r
\n" ); document.write( "\n" ); document.write( "So the point should satisfy the equation\r
\n" ); document.write( "\n" ); document.write( "0 - 3(0) + k = 0
\n" ); document.write( "k= 0
\n" ); document.write( "Line is x-3y=0
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