document.write( "Question 549656: Determine the values of K for which the following system has a nonzero solution:\r
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document.write( "Kx + Ky = 0
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document.write( "4x + 2Ky = 0\r
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document.write( "The official answer is K=0 and K=2\r
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document.write( "Help me please! \n" );
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Algebra.Com's Answer #357937 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Kx + Ky = 0 \n" ); document.write( "4x + 2Ky = 0 \n" ); document.write( ": \n" ); document.write( "multiply the 1st equation by 2, and you have \n" ); document.write( "2kx + 2ky = 0 \n" ); document.write( "4x + 2ky = 0 \n" ); document.write( "-------------------subtraction eliminates 2ky, find k \n" ); document.write( "2kx - 4x + 0 = 0 \n" ); document.write( "2kx = 4x \n" ); document.write( "divide both sides by 2x \n" ); document.write( "k = 2 \n" ); document.write( ": \n" ); document.write( "I'm not sure how you would get k=0 \n" ); document.write( " |