document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=23080>Question 23080</A>: <I><SPAN STYLE=\"word-break: break-all;\"> f(x)=13x3+13x4-3x<BR>\n" );
document.write( "findf(-6) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #11542 by </B><A HREF=/tutors/aboutme.mpl?userid=rapaljer><B>rapaljer(4671)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rapaljer><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=rapaljer><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=11542\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28x%29=13x%5E3%2B13x%5E4-3x ALIGN=MIDDLE  ALT=\"f%28x%29=13x%5E3%2B13x%5E4-3x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "find f(-6)\r<BR>\n" );
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document.write( "This is a special notation called \"functional notation\" that means that if <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28x%29=13x%5E3%2B13x%5E4-3x ALIGN=MIDDLE  ALT=\"f%28x%29=13x%5E3%2B13x%5E4-3x\"   DISABLED_style= \"max-width:90%; height:auto;\" >, then to find f(-6) you just substitute -6 in place of all the x's in the formula, and calculate it!  In this case, you might want to use a calculator, unless your teacher says you need to do it all in your head!!\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28x%29=13x%5E3%2B13x%5E4-3x ALIGN=MIDDLE  ALT=\"f%28x%29=13x%5E3%2B13x%5E4-3x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+f%28-6%29=+13%2A%28-6%29%5E3+%2B+13%2A%28-6%29%5E4+-3%28-6%29 ALIGN=MIDDLE  ALT=\"+f%28-6%29=+13%2A%28-6%29%5E3+%2B+13%2A%28-6%29%5E4+-3%28-6%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+f%28-6%29+=+13%2A%28-216%29+%2B+13%2A1296%2B18 ALIGN=MIDDLE  ALT=\"+f%28-6%29+=+13%2A%28-216%29+%2B+13%2A1296%2B18\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+f%28-6%29+=+-2808+%2B16848+%2B18 ALIGN=MIDDLE  ALT=\"+f%28-6%29+=+-2808+%2B16848+%2B18\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+f%28-6%29=14058 ALIGN=MIDDLE  ALT=\"+f%28-6%29=14058\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "It's even easier, especially for a problem with large numbers and huge arithmetic, to solve this one with a graphing calculator!!!  If anyone has a TI84, TI83, or TI86, try graphing  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y1=13x%5E3%2B13x%5E4-3x ALIGN=MIDDLE  ALT=\"y1=13x%5E3%2B13x%5E4-3x\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  Actually you don't even care what the graph looks like.  Just go to TRACE, and go to x=-6.  The value of y when x=-6 is the value we are looking for, 14058 FINAL ANSWER!!\r<BR>\n" );
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document.write( "R^2 at SCC<BR>\n" );
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