document.write( "Question 198414: The graphs of the equations 4x-y=6 and x+y=4 intersect at the point whose coordinates are
\n" );
document.write( "1.(2,-2)
\n" );
document.write( "2.(5,-1)
\n" );
document.write( "3.(1,3)
\n" );
document.write( "4.(2,2) \n" );
document.write( "
Algebra.Com's Answer #148936 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! Solve the system of equations. \n" ); document.write( "Do this by the addition method -- add both equations together: \n" ); document.write( "4x-y=6 \n" ); document.write( " x+y=4 \n" ); document.write( "------- \n" ); document.write( "5x =10 \n" ); document.write( "x = 2 \n" ); document.write( ". \n" ); document.write( "Substitute the above into: \n" ); document.write( " x+y=4 \n" ); document.write( " 2+y=4 \n" ); document.write( " y=2 \n" ); document.write( ". \n" ); document.write( "Therefore, the graphs cross at: \n" ); document.write( "(x,y) = (2,2) \n" ); document.write( " \n" ); document.write( " |