document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=946175>Question 946175</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An object is projected vertically from the top of a building with an initial velocity of 128ft/sec. It's distance is s(t) in feet above the ground after t seconds is given by the equation.\r<BR>\n" );
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document.write( "S(t)= -16t^2 + 128t +80\r<BR>\n" );
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document.write( "a. Find its maximum distance above the ground.\r<BR>\n" );
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document.write( "b. Find the height of the building.\r<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 #577223 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=577223\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An object is projected vertically from the top of a building with an initial velocity of 128ft/sec. It's [sic] distance is s(t) in feet above the ground after t seconds is given by the equation.\r<BR>\n" );
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document.write( "S(t)= -16t^2 + 128t +80\r<BR>\n" );
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document.write( "a. Find its maximum distance above the ground.<BR>\n" );
document.write( "Max height is the vertex of the parabola at t - -b/2a<BR>\n" );
document.write( "t = -128/-32 = 4 seconds<BR>\n" );
document.write( "s(4) = -16*16 + 128*4 + 80 = 336 feet<BR>\n" );
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document.write( "b. Find the height of the building.<BR>\n" );
document.write( "It's s(0) = 80 feet </SPAN>\n" );
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