document.write( "Question 348440: find a formula for f-1(x). give the domain of f-1, including any restrictioons \"inherited\" from f.\r
\n" ); document.write( "\n" ); document.write( "f(x)=2x+5
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Algebra.Com's Answer #249075 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"y=2x%2B5\"$
\n" ); document.write( "Interchange $\"x\"$ and $\"y\"$ and solve for new $\"y\"$ .
\n" ); document.write( " $\"highlight%28x%29=2%2Ahighlight%28y%29%2B5\"$
\n" ); document.write( " $\"x-5=2y\"$
\n" ); document.write( " $\"y=%281%2F2%29%28x-5%29\"$
\n" ); document.write( " $\"f%5E%28-1%29%28x%29=%281%2F2%29%28x-5%29\"$
\n" ); document.write( "There are no restrictions on $\"f%28x%29\"$ and no restrictions on $\"f%5E%28-1%29%28x%29\"$ \n" ); document.write( "

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