document.write( "Question 1068242: Consider the function f(x) = 8-x^2 for the domain [0,infinity).
\n" ); document.write( "Find f ^-1 (x), where f ^-1 is the inverse of f.
\n" ); document.write( "Also state the domain of f ^-1 in interval notation. \r
\n" ); document.write( "\n" ); document.write( "f ^-1 (x) = ________ for the domain ________\r
\n" ); document.write( "\n" ); document.write( "Appreciate help on this question. Thank you.\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #683413 by josgarithmetic(39630)\"\" \"About 
You can put this solution on YOUR website!
The RANGE for f(x)=8-x^2 using the domain [0,infinity) is [0,8]. This will then become the domain for the inverse function.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Quick-switch
\n" ); document.write( "\"8-y%5E2=x\"
\n" ); document.write( "\"-y%5E2=x-8\"
\n" ); document.write( "\"y%5E2=-x%2B8\"
\n" ); document.write( "\"highlight%28y=sqrt%288-x%29%29\", the upper branch being what is wanted here.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"graph%28300%2C300%2C-2%2C10%2C-2%2C10%2C8-x%5E2%2Csqrt%288-x%29%29\"
\n" ); document.write( "f in red
\n" ); document.write( "f^-1 in green
\n" ); document.write( "
\n" );