document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=976956>Question 976956</A>: <I><SPAN STYLE=\"word-break: break-all;\"> While on the golf course last weekend Marc hit into the rough landing the ball behind a<BR>\n" );
document.write( "tall tree. His best option was to get it high enough to get over the tree and hopefully<BR>\n" );
document.write( "come down in the fairway for his next shot. So with a mighty swing he hit the ball into<BR>\n" );
document.write( "the air and was surprised to see the ball hit near the top of a 300 foot tall tower that<BR>\n" );
document.write( "he had not noticed.<BR>\n" );
document.write( "The formula  is: h(x)= -16x^2 +20x where h is the height of the ball and<BR>\n" );
document.write( "x is the number of seconds the ball is in the air.<BR>\n" );
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document.write( "How high did Marc actually hit the ball? \r<BR>\n" );
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document.write( "I am completely stuck on this question any assistance would be appreciated.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #598435 by </B><A HREF=/tutors/aboutme.mpl?userid=FrankM><B>FrankM(1040)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=FrankM><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=FrankM><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=598435\">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=y=-16X%5E2%2B20X ALIGN=MIDDLE  ALT=\"y=-16X%5E2%2B20X\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "The vertex is\r<BR>\n" );
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document.write( "(-b/2a)= (-20/-32)= (5/8)sec\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=-16%28%285%2F8%29%5E2%29%2B%2820%29%285%2F8%29 ALIGN=MIDDLE  ALT=\"y=-16%28%285%2F8%29%5E2%29%2B%2820%29%285%2F8%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "6.25\r<BR>\n" );
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document.write( " <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/display-illustration.mpl?tutor=FrankM&illustration_name=golf.jpeg\">.\r<BR>\n" );
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document.write( "It seems the ball was only 6.25 high. </SPAN>\n" );
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