document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=730974>Question 730974</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A ball is thrown upward from the top of a building.  The ball's height above the ground after t seconds is given by the function: h (t) = -16t^2 + 48t + 32.\r<BR>\n" );
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document.write( "a.) What is the initial height?\r<BR>\n" );
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document.write( "b.) How high did the ball go?\r<BR>\n" );
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document.write( "c.) When does the ball hit the ground? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #446945 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=446945\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a)32 set t to zero<BR>\n" );
document.write( "b)find the maximum 68 <BR>\n" );
document.write( "parabola<BR>\n" );
document.write( "focus | (3/2, 4351/64)<BR>\n" );
document.write( "vertex | (3/2, 68)<BR>\n" );
document.write( "semi-axis length | 1/64 = 0.015625<BR>\n" );
document.write( "focal parameter | 1/32 = 0.03125<BR>\n" );
document.write( "eccentricity | 1<BR>\n" );
document.write( "directrix | y = 4353/64<BR>\n" );
document.write( "c)set 0=-16t^2 + 48t + 32 <BR>\n" );
document.write( "t = 3.5616 </SPAN>\n" );
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