document.write( "Question 830002: Which of the following is the equation of a line perpendicular to the line
\n" ); document.write( "y=-1/3x+1 , passing through the point (2,7)?\r
\n" ); document.write( "\n" ); document.write( "-3x-y=1\r
\n" ); document.write( "\n" ); document.write( "3x-y=-1\r
\n" ); document.write( "\n" ); document.write( "3x-y=1\r
\n" ); document.write( "\n" ); document.write( "-3x+y=-1
\n" ); document.write( "

Algebra.Com's Answer #500323 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
Which of the following is the equation of a line perpendicular to the line
\n" ); document.write( "y=-1/3x+1 , passing through the point (2,7)?\r
\n" ); document.write( "\n" ); document.write( "-3x-y=1\r
\n" ); document.write( "\n" ); document.write( "3x-y=-1\r
\n" ); document.write( "\n" ); document.write( "3x-y=1\r
\n" ); document.write( "\n" ); document.write( "-3x+y=-1
\n" ); document.write( "--------------
\n" ); document.write( "Check the slope. If it's perpendicular, the slope is +3.
\n" ); document.write( "Then, sub 2 for x and 7 for y, see if it's equal.
\n" ); document.write( "
\n" ); document.write( "
\n" );