document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=457870>Question 457870</A>: <I><SPAN STYLE=\"word-break: break-all;\"> For the real-valued functions f(x)=2x+1 and g(x)=sqrt(x-1), find the composition f o g and specify its domain using interval notation.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #315534 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=315534\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> For the real-valued functions f(x)=2x+1 and g(x)=sqrt(x-1), find the composition f o g and specify its domain using interval notation.<BR>\n" );
document.write( "..<BR>\n" );
document.write( "f(x)=2x+1<BR>\n" );
document.write( "g(x)=sqrt(x-1)<BR>\n" );
document.write( "fog(x)=f[g(x)]=2&#8730;(x-1)+1<BR>\n" );
document.write( "restriction in sqrt<BR>\n" );
document.write( "x-1&#8805;0<BR>\n" );
document.write( "x&#8805;1<BR>\n" );
document.write( "domain:[1,&#8734;) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );