document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=56063>Question 56063</A>: <I><SPAN STYLE=\"word-break: break-all;\">  If f(x) = 5x - 7, what is f -1(x)? <BR>\n" );
document.write( "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 #38009 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=38009\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If f(x) = 5x - 7, what is f -1(x)? <BR>\n" );
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document.write( "To get the inverse of a function interchange<BR>\n" );
document.write( "the x's with the y'x and solve for y, as follows:<BR>\n" );
document.write( "y=5x-7<BR>\n" );
document.write( "Interchange to get:<BR>\n" );
document.write( "x=5y-7<BR>\n" );
document.write( "Solve for y to get:<BR>\n" );
document.write( "y=(1/5)x+(7/5)<BR>\n" );
document.write( "That is the inverse.<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );