document.write( "Question 494730: Find f(4) when f(x) = 2n - 1 \n" ); document.write( "
Algebra.Com's Answer #335783 by richard1234(7193)\"\" \"About 
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Assuming n is constant, f(4) = 2n-1.\r
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\n" ); document.write( "\n" ); document.write( "If you somehow meant f(x) = 2x-1 (always keep your variables consistent), then f(4) = 2(4)-1 = 7.
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