document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=271899>Question 271899</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the inverse for the function f(x)=x^2+2? Is the inverse f^-1(x) a function? Explain. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #198978 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=198978\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f(x)=x^2+2<BR>\n" );
document.write( "y=x^2+2<BR>\n" );
document.write( "x=y^2+2<BR>\n" );
document.write( "y^2=x-2<BR>\n" );
document.write( "y=sqrt(x-2), y=-sqrt(x-2)<BR>\n" );
document.write( "f^-1(x)=+-sqrt(x-2)<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Ed </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );