document.write( "Question 1053074: Solve the system by graphing both lines on one coordinate system. Show work and each point.
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document.write( "2x+y=3
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document.write( "x-3y=12 \n" );
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Algebra.Com's Answer #668351 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Solve the system by graphing both lines on one coordinate system. Show work and each point. \n" ); document.write( "2x+y=3 \n" ); document.write( "x-3y=12 \n" ); document.write( "------------ \n" ); document.write( "They're 2 straight lines, so you need 2 points for each. \n" ); document.write( "============== \n" ); document.write( "2x+y=3 \n" ); document.write( "--> y = -2x + 3 \n" ); document.write( "Pick 2 values for x and find y. \n" ); document.write( "eg, \n" ); document.write( "x = 0, y = 3 ---> the point (0,3) \n" ); document.write( "x = 2, y = -1 --> the point (2,-1) \n" ); document.write( "========== \n" ); document.write( "Plot the 2 points. \n" ); document.write( "Draw a line thru them. \n" ); document.write( "======================================= \n" ); document.write( "Do the same for x-3y = 12 \n" ); document.write( "You might use x = 3y + 12 and pick values for y and find x. \n" ); document.write( "Makes no difference. \n" ); document.write( "Plot 2 points, and draw a line thru them. \n" ); document.write( "=============================================== \n" ); document.write( "The solution to the system of 2 equations is the intersection of the 2 lines.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |