document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=162256>Question 162256</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The polynominal function f(x)=0.004x^3-0.12x^2+5.2x+12 models the path of a portion of the track of a roller coaster.  Find the height of the track for x=40.\r<BR>\n" );
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document.write( "Help to solve please I am confused. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #119577 by </B><A HREF=/tutors/aboutme.mpl?userid=KnightOwlTutor><B>KnightOwlTutor(293)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KnightOwlTutor><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=KnightOwlTutor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=119577\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> All you have to do is plug in the value 40 for each x\r<BR>\n" );
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document.write( "f(x)=0.004x^3-0.12x^2+5.2x+12 \r<BR>\n" );
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document.write( "f(x)=.004(40)^3-0.12(40)^2+(5.2)(40)+12\r<BR>\n" );
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document.write( "256-192+208+12=284 is the height of the track when x=40 </SPAN>\n" );
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