document.write( "Question 452046: The line y=2x-k passes through the point (4,0)
\n" ); document.write( "work out the value of k
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Algebra.Com's Answer #310752 by nerdybill(7384)\"\" \"About 
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The line y=2x-k passes through the point (4,0)
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\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
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