document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=243019>Question 243019</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am stuck on this question I hope you can help\r<BR>\n" );
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document.write( "Suppose that the kicker for the chargers has a punt that can be modeled by h(t)=-2t^2+200, where its height from the ground can be found based on how many seconds (t) have passed since the kick. Given this how long will it take for the foot ball to hit the ground?\r<BR>\n" );
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document.write( "P.s. I can figure out to type in exponents so the 2t^2 is supposed to be        2t squared </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #178068 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=178068\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Suppose that the kicker for the chargers has a punt that can be modeled by h(t)=-2t^2+200, <BR>\n" );
document.write( "where its height from the ground can be found based on how many seconds (t) have passed since the kick. <BR>\n" );
document.write( "Given this how long will it take for the foot ball to hit the ground?<BR>\n" );
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document.write( "this equation cannot be right, this one shows the height as 200 when t=0<BR>\n" );
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document.write( "Assume the equation is h(t) = -2t^2 + 20t<BR>\n" );
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document.write( "When the ball hits the ground, h(t) = 0, therefore<BR>\n" );
document.write( "-2t^2 + 20t = 0<BR>\n" );
document.write( "Factor out -2t, this also changes the signs<BR>\n" );
document.write( "-2t(t - 10) = 0<BR>\n" );
document.write( "t = +10 sec<BR>\n" );
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document.write( "looks like this:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+300%2C+200%2C+-6%2C+15%2C+-20%2C+60%2C+-2x%5E2+%2B+20x+%29+ ALIGN=MIDDLE  ALT=\"+graph%28+300%2C+200%2C+-6%2C+15%2C+-20%2C+60%2C+-2x%5E2+%2B+20x+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" >  </SPAN>\n" );
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