document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1104536>Question 1104536</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A ball is thrown vertically upward from the top of a building 96 feet tall with an initial velocity of 80 feet per second. The distance S (in feet )of the ball from the ground, after t seconds is s=96+80t-16t^2.\r<BR>\n" );
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document.write( "a. How long does it take for the ball to reach its<BR>\n" );
document.write( "highest point? \r<BR>\n" );
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document.write( "b. What is the maximum height the ball reaches?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #719252 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=719252\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A ball is thrown vertically upward from the top of a building 96 feet tall with an initial velocity of 80 feet per second. The distance S (in feet )of the ball from the ground, after t seconds is s=96+80t-16t^2.<BR>\n" );
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document.write( "Use s(t) = -16t^2 + 80t + 96<BR>\n" );
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document.write( "a. How long does it take for the ball to reach its<BR>\n" );
document.write( "highest point?<BR>\n" );
document.write( "The value of t at the vertex, t = -b/2a<BR>\n" );
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document.write( "b. What is the maximum height the ball reaches?<BR>\n" );
document.write( "The max is the vertex of the parabola. </SPAN>\n" );
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