document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=51312>Question 51312</A>: <I><SPAN STYLE=\"word-break: break-all;\"> For the functions f(x) = 4x + 7 and g(x) = -9x + 11, <BR>\n" );
document.write( "find f(g(0)).\r<BR>\n" );
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document.write( "For the functions f(x) = 3x2 - 7<BR>\n" );
document.write( "and g(x) = -3x2 + 4, <BR>\n" );
document.write( "find f(g(2)).\r<BR>\n" );
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document.write( "For the functions f(x) = 3x2 - 7<BR>\n" );
document.write( "and g(x) = -3x2 + 8, <BR>\n" );
document.write( "find g(f((-4)). \r<BR>\n" );
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document.write( "For the functions f(x) = 3x2 - 8<BR>\n" );
document.write( "and g(x) = -7x2 + 5, <BR>\n" );
document.write( "find g(f((-4)). \r<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 #34256 by </B><A HREF=/tutors/aboutme.mpl?userid=THANApHD><B>THANApHD(104)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=THANApHD><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=THANApHD><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=34256\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> ah composite functions! problems!\r<BR>\n" );
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document.write( "For the functions f(x) = 4x + 7 and g(x) = -9x + 11, <BR>\n" );
document.write( "find f(g(0)). \r<BR>\n" );
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document.write( "       f(g(x))= f(-9x+11) = 4(-9x+11)+7<BR>\n" );
document.write( "                          = 4(-9*0+11)+7   (subtitute the values for ,0)<BR>\n" );
document.write( "                          = 4*11+7<BR>\n" );
document.write( "                          = 44+7<BR>\n" );
document.write( "                          =51\r<BR>\n" );
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document.write( "For the functions f(x) = 3x2 - 7     ( actually wat U mean by 3x2,U mean 3(x^2) or (3x)^2)---and g(x) = -3x2 + 4, <BR>\n" );
document.write( "find f(g(2)).\r<BR>\n" );
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document.write( "     f(g(x))= f(-3x^2+4) = 3(-3x^2+4)^2-7<BR>\n" );
document.write( "  substiude x to 2=>     = 3(-3(2^2)+4)^2-7<BR>\n" );
document.write( "                         =3*(-8)^2-7<BR>\n" );
document.write( "                         =3*64-7<BR>\n" );
document.write( "                         =192-7<BR>\n" );
document.write( "                         =  185 \r<BR>\n" );
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document.write( "For the functions f(x) = 3x2 - 7<BR>\n" );
document.write( "and g(x) = -3x2 + 8, <BR>\n" );
document.write( "find g(f((-4)). \r<BR>\n" );
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document.write( "          so f(g(x)) = 3{[-3(x^2)+8]^2}-7<BR>\n" );
document.write( "                x=(-)4=>  3(-40)^2-7<BR>\n" );
document.write( "                     = 3*1600-7<BR>\n" );
document.write( "                     =4800-7  <BR>\n" );
document.write( "                     = 4793\r<BR>\n" );
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document.write( "For the functions f(x) = 3x2 - 8<BR>\n" );
document.write( "and g(x) = -7x2 + 5, <BR>\n" );
document.write( "find g(f((-4)). \r<BR>\n" );
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document.write( "         so f(g(x)) = 3{[-7(x^2)+5]^2}-8<BR>\n" );
document.write( "                x=(-4)=> 3{[-7((-4)^2)+5]^2}-8\r<BR>\n" );
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document.write( "                      = ???        You try it as the above<BR>\n" );
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