document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=919877>Question 919877</A>: <I><SPAN STYLE=\"word-break: break-all;\"> f(x) is a function such that f(1)=2, f(4)=3, f(7)=4, f^-1(x) is the inverse of f(x),what is  f^-1(f^-1(3))? Thank you.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #558035 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=558035\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f^-1(2)=1,  f^-1(3)=4,  f^-1(4)=7.\r<BR>\n" );
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document.write( "Start with the inside of your unknown expression and work outward.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%5E-1%28f%5E-1%283%29%29 ALIGN=MIDDLE  ALT=\"f%5E-1%28f%5E-1%283%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%5E-1%284%29 ALIGN=MIDDLE  ALT=\"f%5E-1%284%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7 ALIGN=MIDDLE  ALT=\"7\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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