document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=181630>Question 181630</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The altitude in feet of a toy rocket t seconds after launch is given by the function S(t) = -16t^2 + 128t.\r<BR>\n" );
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document.write( "What is the maximum altitude reached by the rocket?\r<BR>\n" );
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document.write( "How long does it take for the rocket to reach this maximum altitude? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #136258 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=136258\">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=S%28t%29+=+-16t%5E2+%2B+128t ALIGN=MIDDLE  ALT=\"S%28t%29+=+-16t%5E2+%2B+128t\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "With a parabola, the maximum or minimum occurs wher<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t+=+%28-b%29%2F%282a%29 ALIGN=MIDDLE  ALT=\"t+=+%28-b%29%2F%282a%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > when the general formula is<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=S%28t%29+=+at%5E2+%2B+bt+%2B+c ALIGN=MIDDLE  ALT=\"S%28t%29+=+at%5E2+%2B+bt+%2B+c\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a+=+-16 ALIGN=MIDDLE  ALT=\"a+=+-16\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b+=+128 ALIGN=MIDDLE  ALT=\"b+=+128\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-b%29%2F%282a%29+=+%28-128%29%2F%282%2A%28-16%29%29 ALIGN=MIDDLE  ALT=\"%28-b%29%2F%282a%29+=+%28-128%29%2F%282%2A%28-16%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-b%29%2F%282a%29+=+4 ALIGN=MIDDLE  ALT=\"%28-b%29%2F%282a%29+=+4\"   DISABLED_style= \"max-width:90%; height:auto;\" >sec<BR>\n" );
document.write( "In 4 sec the rocket will reach it's maximum altitude<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=S%28t%29+=+-16t%5E2+%2B+128t ALIGN=MIDDLE  ALT=\"S%28t%29+=+-16t%5E2+%2B+128t\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=S%284%29+=+-16%2A4%5E2+%2B+128%2A4 ALIGN=MIDDLE  ALT=\"S%284%29+=+-16%2A4%5E2+%2B+128%2A4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=S%284%29+=+-128+%2B+128%2A4 ALIGN=MIDDLE  ALT=\"S%284%29+=+-128+%2B+128%2A4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=S%284%29+=+384 ALIGN=MIDDLE  ALT=\"S%284%29+=+384\"   DISABLED_style= \"max-width:90%; height:auto;\" > ft<BR>\n" );
document.write( "The maximum altitude is 384 ft </SPAN>\n" );
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