document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=470114>Question 470114</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If \"f\" is a one-to-one function and f(6)=-8,f(-8)=-7, and f(-7)=6, find f^-1(-7)\r<BR>\n" );
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document.write( "a. -6<BR>\n" );
document.write( "b. -8<BR>\n" );
document.write( "c. -7<BR>\n" );
document.write( "d. 6<BR>\n" );
document.write( "e. 7\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #322484 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=322484\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE f(-8)=-7\"> ... Start with the given equation\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE f^{-1}\left(f(-8)\right)=f^{-1}\left(-7\right)\"> ... Apply <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE f^{-1}\"> to both sides.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE -8=f^{-1}\left(-7\right)\"> ... Since f is one-to-one, <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE f^{-1}\left(f(-8)\right)=-8\"> (ie f and f inverse cancel each other out)\r<BR>\n" );
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document.write( "So <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE f^{-1}\left(-7\right)=-8\"> </SPAN>\n" );
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