document.write( "Question 896694: Find the ratio in which the line x+y=2 divides the line formed by the coordinates (-1,1) and (6,8).
\n" ); document.write( "Please show me the working too.
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Algebra.Com's Answer #543713 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
Find equation:
\n" ); document.write( "(-1,1) and (6,8)
\n" ); document.write( "\"+y+=+m%2Ax+%2B+b+\"
\n" ); document.write( "\"+1+=+m%2A%28-1%29+%2B+b+\"
\n" ); document.write( "\"+8+=+m%2A6+%2B+b+\"
\n" ); document.write( "--------------------
\n" ); document.write( "\"+6m+%2B+b+=+8+\"
\n" ); document.write( "\"+-m+%2B+b+=+1+\"
\n" ); document.write( "-----------------
\n" ); document.write( "Subtract
\n" ); document.write( "\"+6m+%2B+b+=+8+\"
\n" ); document.write( "\"+m+-+b+=+-1+\"
\n" ); document.write( "\"+7m+=+7+\"
\n" ); document.write( "\"+m+=+1+\"
\n" ); document.write( "and
\n" ); document.write( "\"+-m+%2B+b+=+1+\"
\n" ); document.write( "\"+-1+%2B+b+=+1+\"
\n" ); document.write( "\"+b+=+2+\"
\n" ); document.write( "-----------------
\n" ); document.write( "The equation is:
\n" ); document.write( "\"+y+=+x+%2B+2+\"
\n" ); document.write( "---------------
\n" ); document.write( "The given equation is:
\n" ); document.write( "\"+x+%2B+y+=+2+\"
\n" ); document.write( "\"+y+=+-x+%2B+2+\"
\n" ); document.write( "-----------------
\n" ); document.write( "Find the intersection of the lines
\n" ); document.write( "\"+y+=+x+%2B+2+\"
\n" ); document.write( "\"+y+=+-x+%2B+2+\"
\n" ); document.write( "--------------
\n" ); document.write( "\"+2y+=+4+\"
\n" ); document.write( "\"+y+=+2+\"
\n" ); document.write( "and
\n" ); document.write( "\"+y+=+x+%2B+2+\"
\n" ); document.write( "\"+2+=+x+%2B+2+\"
\n" ); document.write( "\"+x+=+0+\"
\n" ); document.write( "The intersection is: ( 0,2 )
\n" ); document.write( "-------------------------
\n" ); document.write( "Name: C (0,2)
\n" ); document.write( "Name: A (-1,1 )
\n" ); document.write( "Name B (6,8)
\n" ); document.write( "---------------
\n" ); document.write( "For just the x-co-ordinates:
\n" ); document.write( "AC/CB = \"+%28+-1+-+0+%29+%2F+%28+0+-+6+%29+\"
\n" ); document.write( "AC/CB = \"+%28-1%29%2F%28-6%29+\"
\n" ); document.write( "AC/CB = \"+1%2F6+\"
\n" ); document.write( "-------------------
\n" ); document.write( "For the y-co-ordinates:
\n" ); document.write( "AC/CB = \"+%28+1+-+2+%29+%2F+%28+2+-+8+%29+\"
\n" ); document.write( "AC/CB = \"+%28-1%29%2F%28-6%29+\"
\n" ); document.write( "AC/CB = \"+1%2F6+\"
\n" ); document.write( "-------------------
\n" ); document.write( "The given line is divided in x and y
\n" ); document.write( "by the same ratio ( as it should ), so
\n" ); document.write( "the line is divided in the ratio 1/6
\n" ); document.write( "------------------------------
\n" ); document.write( "Here's the plot of the lines:
\n" ); document.write( "\"+graph%28+400%2C+400%2C+-10%2C+10%2C+-10%2C+10%2C+x%2B2%2C+-x%2B2+%29+\"\r
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