document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=309222>Question 309222</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A rock falls from a clift that is 80 feet high.  The function h=-16t^2+80 gives the height of the rock after t seconds.<BR>\n" );
document.write( "A. Graph the function<BR>\n" );
document.write( "B. What values make sense for the domain?<BR>\n" );
document.write( "C. What values make sense for the range?\r<BR>\n" );
document.write( "<BR>\n" );
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document.write( "Please Help me Solve this </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #221110 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=221110\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A rock falls from a cliff that is 80 feet high. <BR>\n" );
document.write( "The function h = -16t^2+80 gives the height of the rock after t seconds.<BR>\n" );
document.write( "A. Graph the function<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28400%2C300%2C-10%2C20%2C-10%2C100%2C-16x%5E2%2B80%29 ALIGN=MIDDLE  ALT=\"graph%28400%2C300%2C-10%2C20%2C-10%2C100%2C-16x%5E2%2B80%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "B. What values make sense for the domain?<BR>\n" );
document.write( "-16t^2=-80<BR>\n" );
document.write( "t^2 = 5<BR>\n" );
document.write( "t = sqrt(5)<BR>\n" );
document.write( "Domain: 0<= t <= sqrt(5)<BR>\n" );
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document.write( "C. What values make sense for the range?<BR>\n" );
document.write( "Range: 0<= h <= 80<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );