document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=73850>Question 73850</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Given f(x) = 3 x+8 and g(x) = sqrt(x+3), find f ° g(4) and g ° f(4), giving exact answers (using sqrt if necessary).<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #52817 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=52817\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Given f(x) = 3 x+8 and g(x) = sqrt(x+3), find f ° g(4) and g ° f(4), giving exact answers (using sqrt if necessary).\r<BR>\n" );
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document.write( "fog(4) = f[g(4)] = f[sqrt(4+3)]<BR>\n" );
document.write( "=f[sqrt(7)] <BR>\n" );
document.write( "= 3sqrt(7)+8\r<BR>\n" );
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document.write( "==============<BR>\n" );
document.write( "gof(4) = g[f(4)]<BR>\n" );
document.write( "=g[3*4+8]<BR>\n" );
document.write( "=g(20)<BR>\n" );
document.write( "=sqrt(20+3)<BR>\n" );
document.write( "=sqrt(23)<BR>\n" );
document.write( "=================\r<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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