document.write( "Question 452046: The line y=2x-k passes through the point (4,0)
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document.write( "work out the value of k \n" );
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Algebra.Com's Answer #310752 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! The line y=2x-k passes through the point (4,0) \n" ); document.write( ". \n" ); document.write( "Since the line passes through (4,0) \n" ); document.write( "this means that \n" ); document.write( "x = 4 \n" ); document.write( "y = 0 \n" ); document.write( ". \n" ); document.write( "plug it in to: \n" ); document.write( "y = 2x-k \n" ); document.write( "0 = 2(4)-k \n" ); document.write( "0 = 8-k \n" ); document.write( "adding 'k' to both sides: \n" ); document.write( "k = 8 \n" ); document.write( " |