document.write( "Question 53807: A line that is perpendicular to 3x-9y=13 through (2,-4)this is what I did:
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document.write( "-9y=13-3x
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document.write( "divided all by -9 to get
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document.write( "y=-13/9-1/3x
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document.write( "slope =-1/3
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document.write( "y-(-4)=-1/3(x-2)
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document.write( "y+4=-1/3x+2/3
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document.write( "y=-1/3x+2/3-4
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document.write( "y=-1/3x-3 1/3\r
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Algebra.Com's Answer #36080 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! SORRY FOR THE OVERSIGHT. I JUST HAD LASER SURGERY THIS MORNING & MY LEFT EYE IS STILL BLURRED. HOWEVER I SHOULD HAVE RECHECKED MY MATH. \r \n" ); document.write( "\n" ); document.write( "3X-9Y=13 OR -9Y=3X-13 OR -Y=3/9X-13/9 OR -Y=1/3X-13/9 or Y=-1/3X+13/9 SO THE PERPENDICULAR LINE HAS A SLOPE OF 3 THE NEGATIVE RECIPRICAL OF THE SLOPE OF \n" ); document.write( "-1/3 \n" ); document.write( "SO THE EQUATION OF THE LINE WITH A SLOPE OF 3 THROUGH (2,-4) IS \r \n" ); document.write( "\n" ); document.write( "Y=3X+b or -4=3*2+b or -4=6+b or b=-10 thus the equatiion is y=3x-10 \n" ); document.write( " |