document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=404412>Question 404412</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The number of gallons of water remaining in a pool t hours after it begun to drain is illustrated in the table.\r<BR>\n" );
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document.write( "Hours, t      _________          Number of gal. of water<BR>\n" );
document.write( "0             _________                    20,000<BR>\n" );
document.write( "5             _________                    16,500<BR>\n" );
document.write( "10            _________                    13,000<BR>\n" );
document.write( "15            _________                    9,500<BR>\n" );
document.write( "20            _________                    6,000\r<BR>\n" );
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document.write( "a. Find a liner model for this data.\r<BR>\n" );
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document.write( "b. How many gallons of water will remain in the pool after 26 hours? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #285891 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=285891\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The number of gallons of water remaining in a pool t hours after it begun to<BR>\n" );
document.write( " drain is illustrated in the table.<BR>\n" );
document.write( "Hours, t _________ Number of gal. of water<BR>\n" );
document.write( "0 _________ 20,000<BR>\n" );
document.write( "5 _________ 16,500<BR>\n" );
document.write( "10 _________ 13,000<BR>\n" );
document.write( "15 _________ 9,500<BR>\n" );
document.write( "20 _________ 6,000<BR>\n" );
document.write( "a. Find a linear model for this data.<BR>\n" );
document.write( "Find the slope using the 1st and last data points<BR>\n" );
document.write( "m = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%286000-20000%29%2F%2820-0%29 ALIGN=MIDDLE  ALT=\"%286000-20000%29%2F%2820-0%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-14000%29%2F20 ALIGN=MIDDLE  ALT=\"%28-14000%29%2F20\"   DISABLED_style= \"max-width:90%; height:auto;\" > = -700 is the slope<BR>\n" );
document.write( "The equation<BR>\n" );
document.write( "g = -700t + 20000<BR>\n" );
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document.write( "b. How many gallons of water will remain in the pool after 26 hours?<BR>\n" );
document.write( "g = -700(26) + 20000<BR>\n" );
document.write( "g = -18200 + 20000<BR>\n" );
document.write( "g = 1800 gal after 26 hrs </SPAN>\n" );
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