document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=891850>Question 891850</A>: <I><SPAN STYLE=\"word-break: break-all;\"> At midnight the water at a particular beach is at high tide. At the same time a gauge at the end of a pier reads 10 feet. Low tide is reached at 6 AM when the gauge reads 4ft.\r<BR>\n" );
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document.write( "1) Write the equation that models this situation. \r<BR>\n" );
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document.write( "2) Write the equation that models this situation.  \r<BR>\n" );
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document.write( "thank you<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 #540092 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=540092\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+h+ ALIGN=MIDDLE  ALT=\"+h+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = the height of the water in feet<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+ ALIGN=MIDDLE  ALT=\"+t+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = the time in hours<BR>\n" );
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document.write( "You are given the point ( 12,10 ), which is midniight, 10 ft<BR>\n" );
document.write( "and also the point ( 6, 4 ) which is 6 AM, 4 ft<BR>\n" );
document.write( "Use the general point-slope formula<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+h+-+4+%29+%2F+%28+t+-+6+%29+=+%28+10+-+4+%29+%2F+%28+12+-+6+%29+ ALIGN=MIDDLE  ALT=\"+%28+h+-+4+%29+%2F+%28+t+-+6+%29+=+%28+10+-+4+%29+%2F+%28+12+-+6+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+h+-+4+%29+%2F+%28+t+-+6+%29+=+6+%2F+6+ ALIGN=MIDDLE  ALT=\"+%28+h+-+4+%29+%2F+%28+t+-+6+%29+=+6+%2F+6+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+h+-+4+=+t+-+6+ ALIGN=MIDDLE  ALT=\"+h+-+4+=+t+-+6+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+h+=+t+-+2+ ALIGN=MIDDLE  ALT=\"+h+=+t+-+2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "check:<BR>\n" );
document.write( "If the time were 7AM,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+h+=+7+-+2+ ALIGN=MIDDLE  ALT=\"+h+=+7+-+2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+h+=+5+ ALIGN=MIDDLE  ALT=\"+h+=+5+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "OK, I think\r<BR>\n" );
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