document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1179364>Question 1179364</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The function f(t) = - 4.92t ^ 2 + 17.69t + 575 is used to model the height of an object being tossed from a tall building where h () is the height in meters and tis the time in seconds . What are the domain and range ? Round to the nearest hundredth </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #808886 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=808886\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the maximum height is at the vertex where t=-b/2a or -17.69/-9.84 or 1.798 sec.<BR>\n" );
document.write( "f(1.798)=590.90 ft.<BR>\n" );
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document.write( "it reaches 0 feet when -4.92t^2+17.69t+575=0=4.92t^2-17.69t-575<BR>\n" );
document.write( "t=(1/9.84)(+17.69+/-  sqrt(17.69^2+4(575)(4.92)); sqrt term=107.84<BR>\n" );
document.write( "positive root is 12.76 sec rounding at end.<BR>\n" );
document.write( "Domain is [0, 12.76] sec<BR>\n" );
document.write( "range is [0, 590.90] m\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-10%2C20%2C-50%2C700%2C591%2C-4.92x%5E2%2B17.69x%2B575%29 ALIGN=MIDDLE  ALT=\"graph%28300%2C300%2C-10%2C20%2C-50%2C700%2C591%2C-4.92x%5E2%2B17.69x%2B575%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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