document.write( "Question 1131388: 7x-my = 1
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document.write( "7y-mx = 1
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document.write( "which value of \"m\" will make the equation have one solution, and how many values of \"m\" can make it possible.
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document.write( "Also have to find which value for \"m\" will make the equation have infinitely solutions. \n" );
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Algebra.Com's Answer #748064 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! 7x-my = 1 \n" ); document.write( "7y-mx = 1 \n" ); document.write( "which value of \"m\" will make the equation have one solution, and how many values of \"m\" can make it possible. \n" ); document.write( "Also have to find which value for \"m\" will make the equation have infinitely solutions. \n" ); document.write( "--------- \n" ); document.write( "7x-my = 1 \n" ); document.write( "7y-mx = 1 \n" ); document.write( "----- \n" ); document.write( "Find the 2 slopes. \n" ); document.write( "7x-my = 1 \n" ); document.write( "my = 7x - 1 \n" ); document.write( "y = (7/m)*x - 1/m \n" ); document.write( "slope = 7/m \n" ); document.write( "--- \n" ); document.write( "7y-mx = 1 \n" ); document.write( "7y = mx + 1 \n" ); document.write( "y = (m/7)*x + 1/7 \n" ); document.write( "slope = m/7 \n" ); document.write( "=============== \n" ); document.write( "The slopes are different for all values of m except m = 7. \n" ); document.write( "--> 1 solution. \n" ); document.write( "======================== \n" ); document.write( "Also have to find which value for \"m\" will make the equation have infinitely solutions. \n" ); document.write( "==== \n" ); document.write( "Infinite # of solutions --> coincident lines: \n" ); document.write( "7x-my = 7y-mx \n" ); document.write( "7x - 7y = my - mx \n" ); document.write( "7(x-y) = m(y-x) \n" ); document.write( "m = -7\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |