document.write( "Question 239152: How do I find the point of intersection of the pair of straight lines
\n" ); document.write( "y=-8x-10
\n" ); document.write( "-y=9x+9\r
\n" ); document.write( "\n" ); document.write( "(x,y)= (?,?)
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Algebra.Com's Answer #175638 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
y=-8x-10 (red line)
\n" ); document.write( "-y=9x+9
\n" ); document.write( "y=9x/-1+9/-1
\n" ); document.write( "y=-9x-9 (green line)
\n" ); document.write( "You can solve the 2 equations for x & y or you can graph them & calculate the intersection.
\n" ); document.write( "y=-8x-10
\n" ); document.write( "-y=9x+9 add
\n" ); document.write( "----------------------
\n" ); document.write( "0=x-1
\n" ); document.write( "x=1 ans.
\n" ); document.write( "y=-8*1-10
\n" ); document.write( "y=-8-10
\n" ); document.write( "y=-18
\n" ); document.write( "(x,y)= (1,-18)
\n" ); document.write( "\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-25%2C+10%2C+-8x+-10%2C+-9x+-9%29+\" (graph 300x200 pixels, x from -6 to 5, y from -25 to 10, of TWO functions -8x -10 and -9x -9).
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