document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=498372>Question 498372</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I'm doing functions and need some help. the book I am using is 12th edition Algebra and Trig with analytical geometry  by Swokowski and Cole. the homework is page 190-192 #3-45 by 3's.<BR>\n" );
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document.write( "if f(x)= sqrt(x-4-3x), find f(4), f(8), and f(13) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #337012 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=337012\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> if f(x)= sqrt(x-4-3x), find f(4), f(8), and f(13)<BR>\n" );
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document.write( "Sub the values for x:<BR>\n" );
document.write( "f(x) = sqrt(-4-2x)<BR>\n" );
document.write( "f(4) = sqrt(-4-2*4) = sqrt(-12) = 2sqrt(-3)<BR>\n" );
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document.write( "f(8) = sqrt(-4-2*8) = sqrt(-20) etc\r<BR>\n" );
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