document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=482940>Question 482940</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the inverse of the function f(x)= -2log3(x-1)+4<BR>\n" );
document.write( "The '3' is the base of the logarithm. The coefficient and the '+4' part are throwing me off so if you could show me how to do it with or without the answer I'd appreciate it </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #330508 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=330508\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the inverse of the function <BR>\n" );
document.write( "f(x)= -2log3(x-1)+4<BR>\n" );
document.write( "----<BR>\n" );
document.write( "1st: Interchange x and y<BR>\n" );
document.write( "x = -2log3(y-1) + 4<BR>\n" );
document.write( "----<BR>\n" );
document.write( "2nd: Solve for \"y\":<BR>\n" );
document.write( "-2log3(y-1) = x-4<BR>\n" );
document.write( "---<BR>\n" );
document.write( "divide by -2 to get:<BR>\n" );
document.write( "log3(y-1) = (4-x)/2<BR>\n" );
document.write( "---<BR>\n" );
document.write( "y-1 = 3^(4-x)/2<BR>\n" );
document.write( "----<BR>\n" );
document.write( "y = 3^[(4-x)/2] +1<BR>\n" );
document.write( "----<BR>\n" );
document.write( "That is the inverse function.<BR>\n" );
document.write( "==============================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );