document.write( "Question 443761: Find the inverse of the function.
\n" ); document.write( "f(x)=2x+1 \n" ); document.write( "
Algebra.Com's Answer #306019 by nerdybill(7384)\"\" \"About 
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f(x)=2x+1
\n" ); document.write( "y = 2x+1
\n" ); document.write( "switch the x and y's:
\n" ); document.write( "x = 2y+1
\n" ); document.write( "solve for y:
\n" ); document.write( "x = 2y+1
\n" ); document.write( "x-1 = 2y
\n" ); document.write( "x/2 - 1/2 = y
\n" ); document.write( ".
\n" ); document.write( "therefore
\n" ); document.write( "f'(x) = x/2 - 1/2
\n" ); document.write( "or
\n" ); document.write( "f'(x) = (1/2)x - 1/2\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
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