document.write( "Question 1098412: Write the equation of a line parallel to the given line and passing through the given point. y = -x + 7; (-7,-1)\r
\n" ); document.write( "\n" ); document.write( "Write the equation of a line perpendicular to the given line and passing through the given point. y = -x + 7; (-7,-1)
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Algebra.Com's Answer #712761 by Boreal(15235)\"\" \"About 
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point slope formula y-y1=m(x-x1), m slope, (x1, y1) point
\n" ); document.write( "parallel is y+1=-1(x+7), watch the signs carefully
\n" ); document.write( "y+1=-x-7
\n" ); document.write( "y=-x-8
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\n" ); document.write( "perpendicular has negative reciprocal of slope, which would be +1
\n" ); document.write( "y+1=(x+7)
\n" ); document.write( "y=x+6
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