document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=765455>Question 765455</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need quick help with this question<BR>\n" );
document.write( "f(x)=4x<BR>\n" );
document.write( "f(f^-1(-6)) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #466162 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=466162\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f(x) is a linear function. So it is one-to-one which means it has an inverse. So f^(-1) exists and there are no restrictions on the inverse (because f(x) is one-to-one throughout its domain)\r<BR>\n" );
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document.write( "Because there are no restrictions on the inverse at all, we know that f(f^(-1)(x)) = x for all values of x\r<BR>\n" );
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document.write( "So, f(f^-1(-6)) = <font color=\"red\">-6</font> </SPAN>\n" );
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