document.write( "Question 381788: find the f-1 for function \r
\n" ); document.write( "\n" ); document.write( "f(x)= (e^-x) +5 \n" ); document.write( "

Algebra.Com's Answer #270759 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"y=e%5E%28-x%29%2B5\"$
\n" ); document.write( "Interchange $\"x\"$ and $\"y\"$ and solve for the new $\"y\"$ , that's the inverse.
\n" ); document.write( " $\"x=e%5E%28-y%29%2B5\"$
\n" ); document.write( " $\"e%5E%28-y%29=x-5%0D%0A%7B%7B%7B-y=ln%28x-5%29\"$
\n" ); document.write( " $\"y=-ln%28x-5%29\"$
\n" ); document.write( " $\"highlight%28f%5E%28-1%29=-ln%28x-5%29%29\"$
\n" ); document.write( " \n" ); document.write( "

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