document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1077362>Question 1077362</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A ball is thrown from 4 feet off the ground with a vertical velocity of 30 feet per second.\r<BR>\n" );
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document.write( "Is the ball at its maximum height after 1 second? In two or more complete sentences, explain how you know whether or not the ball is at its maximum height. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #691837 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=691837\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> -16t^2+30t+4<BR>\n" );
document.write( "after 1 second-16+30+4=18 feet<BR>\n" );
document.write( "maximum height is when t=-b/2a, or 30/32 (15/16)<BR>\n" );
document.write( "-16(225/256)-450/16+4<BR>\n" );
document.write( "=(-3600+7200+1024)/256=4624/256=18.0625'<BR>\n" );
document.write( "This can be described in words.  We would know when the time (15/16) is not the same as 1 second. </SPAN>\n" );
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