document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1190554>Question 1190554</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the value of f′(x) at the given value of x.<BR>\n" );
document.write( "a) f(x) = 3x - 4√x,x = 4<BR>\n" );
document.write( "b) f(x) = (x-4)(x+3),x = 3 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #822262 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=822262\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> you are simply replacing the x in f(x) with the value of x.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "a.<BR>\n" );
document.write( "f(x) = 3x - 4 * sqrt(x).<BR>\n" );
document.write( "f(4) = 3 * 4 - 4 * sqrt(4) = 12 - 2 = 10\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "b.<BR>\n" );
document.write( "f(x) = (x-4) * (x+3).<BR>\n" );
document.write( "f(3) = (3-4) * (3+3) = -1 * 9 = -9\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "let me know if you have any questions.<BR>\n" );
document.write( "theo\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );