document.write( "Question 139137: Find the point of intersection:
\n" ); document.write( "x+2y-1=0 and 2x+y+1=0 \n" ); document.write( "

Algebra.Com's Answer #101484 by checkley77(12844) $\"\"$ $\"About$

You can put this solution on YOUR website!
x+2y-1=0
\n" ); document.write( "2y=-x+1
\n" ); document.write( "y=-x/2+1/2 (red line)
\n" ); document.write( "2x+y+1=0
\n" ); document.write( "y=-2x-1 (green line)
\n" ); document.write( " $\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+-x%2F2+%2B1%2F2%2C+-2x+-1%29+\"$ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions -x/2 +1/2 and -2x -1).
\n" ); document.write( "ANSWER (-1,1). \n" ); document.write( "

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