document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=469417>Question 469417</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the inverse function of f.\r<BR>\n" );
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document.write( "f(x)=(4x-5)/(7x-9) , x not equal to 9/7 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #322082 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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/cgi-bin/show-face.mpl?user=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=322082\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+%284x-5%29%2F%287x-9%29 ALIGN=MIDDLE  ALT=\"y+=+%284x-5%29%2F%287x-9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Solve for x in terms of y.\r<BR>\n" );
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document.write( "==> 7yx - 9y = 4x - 5<BR>\n" );
document.write( "==> 7yx - 4x = 9y - 5<BR>\n" );
document.write( "==> (7y - 4)x = 9y - 5<BR>\n" );
document.write( "==> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%289y+-+5%29%2F%287y+-+4%29 ALIGN=MIDDLE  ALT=\"x+=+%289y+-+5%29%2F%287y+-+4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Interchange x and y:\r<BR>\n" );
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document.write( "==> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+%289x+-+5%29%2F%287x+-+4%29 ALIGN=MIDDLE  ALT=\"y+=+%289x+-+5%29%2F%287x+-+4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Hence ==> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%5E%28-1%29%28x+%29=+%289x+-+5%29%2F%287x+-+4%29 ALIGN=MIDDLE  ALT=\"f%5E%28-1%29%28x+%29=+%289x+-+5%29%2F%287x+-+4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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