document.write( "Question 81484: solve each of the following systems by graphing. 2x - y = 4 and 2x - y = 6 (This is all one problem and on one graph).
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Algebra.Com's Answer #58421 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! solve each of the following systems by graphing. 2x - y = 4 and 2x - y = 6 (This is all one problem and on one graph). \n" ); document.write( ": \n" ); document.write( "These two equation have the same slope, they are parallel, therefore no solution \n" ); document.write( ": \n" ); document.write( "Here is procedure anyway, which will prove there is no solution: \n" ); document.write( " \n" ); document.write( "Put both equations in the general, y=, form. Make a x/y table for both \n" ); document.write( ": \n" ); document.write( "2x - y = 4 \n" ); document.write( "-y = -2x + 4 \n" ); document.write( "y = 2x - 4: multiplied by -1, y had to be positive \n" ); document.write( ": \n" ); document.write( " x | y \n" ); document.write( "------- \n" ); document.write( "-2 |-8 \n" ); document.write( " 0 |-4 \n" ); document.write( "+3 |+2 \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "2x - y = 6 \n" ); document.write( "-y = -2x + 6 \n" ); document.write( "y = 2x - 6 \n" ); document.write( ": \n" ); document.write( " x | y \n" ); document.write( "-------- \n" ); document.write( "-1 | -8 \n" ); document.write( " 0 | -6 \n" ); document.write( "+4 | +2 \n" ); document.write( ": \n" ); document.write( "Plot these on the same graph, it should look like this: \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( "parallel lines, no intersection, no solution \n" ); document.write( " |