document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1157715>Question 1157715</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A ball is thrown vertically upward from the ground with an initial velocity of 134 ft/sec. Use the quadratic function <BR>\n" );
document.write( "h(t) = −16t2 + 134t + 0<BR>\n" );
document.write( " to find how long it will take for the ball to reach its maximum height (in seconds), and then find the maximum height (in feet) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #780586 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=780586\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The maximum height of a quadratic occurs when t=-b/2a (vertex) where here b=134 and a=-16<BR>\n" );
document.write( "so at -134/-32 or 4.1875 seconds\r<BR>\n" );
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document.write( "h(4.1875)=-280.5625+561.125<BR>\n" );
document.write( "=280.5625 or 281 feet\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28300%2C300%2C-5%2C10%2C-50%2C300%2C-16x%5E2%2B134x%29 ALIGN=MIDDLE  ALT=\"graph%28300%2C300%2C-5%2C10%2C-50%2C300%2C-16x%5E2%2B134x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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