document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=631551>Question 631551</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me with this inverse function.<BR>\n" );
document.write( "Show that f(x)= -2x + 19 has the inverse of f^-1(x)= x-19/-2 by finding <BR>\n" );
document.write( "f^-1(f(x))<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #397653 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=397653\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Show that f(x)= -2x + 19 has the <BR>\n" );
document.write( "inverse of f^-1(x)= x-19/-2 by finding <BR>\n" );
document.write( "f^-1(f(x))<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "f(x) = -2x+19<BR>\n" );
document.write( "1st: Interchange x and y<BR>\n" );
document.write( "x = -2y+19<BR>\n" );
document.write( "2nd; Solve for \"y\":<BR>\n" );
document.write( "-2y = x-19<BR>\n" );
document.write( "f^-1(x) = (x-19)/(-2)<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" );