document.write( "Question 1116532: Find f −1.
\n" ); document.write( "f(x) = x/x+1 for x > −1
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Algebra.Com's Answer #732170 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
I'm assuming you mean the inverse(?).
\n" ); document.write( "Start with x,y definition,
\n" ); document.write( " $\"y=x%2F%28x%2B1%29\"$
\n" ); document.write( "Interchange x and y and solve for y.
\n" ); document.write( "This new y is the inverse of the original.
\n" ); document.write( " $\"x=y%2F%28y%2B1%29\"$
\n" ); document.write( " $\"x%28y%2B1%29=y\"$
\n" ); document.write( " $\"xy%2Bx=y\"$
\n" ); document.write( " $\"xy-y=-x\"$
\n" ); document.write( " $\"y%28x-1%29=-x\"$
\n" ); document.write( " $\"y=-x%2F%28x-1%29\"$
\n" ); document.write( " $\"highlight%28y%5Binv%5D=x%2F%281-x%29%29\"$
\n" ); document.write( " \n" ); document.write( "

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