document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=760088>Question 760088</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have a few sets of points, what i need is a table of every 20 seconds, which I could do if I had the equation.  It has been over 50 years since class. I can tell the slope is changing so it is a curved line decreasing less rapidly over time, I think the y-value is infinity as x approaches 0 and x-value is infinity as y approaches 0.  - So how do I figure what is the equation (unless there is a website somewhere I can just put in the points and get the equation because I will have more of these) and how does the graph really look for these points:\r<BR>\n" );
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document.write( "time/ x seconds, y points<BR>\n" );
document.write( "5:07 307,3908  <BR>\n" );
document.write( "5:15 315,3809  <BR>\n" );
document.write( "6:19 379,3166  <BR>\n" );
document.write( "7:12 432,2777  <BR>\n" );
document.write( "7:30 450,2666  \r<BR>\n" );
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document.write( "Thank you from a deteriorating mind.<BR>\n" );
document.write( "Judy K.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #462423 by </B><A HREF=/tutors/aboutme.mpl?userid=DrBeeee><B>DrBeeee(684)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=DrBeeee><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=462423\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We need to convert the x value to a single variable of time. Let the origin of x be at 5 hours, then the first value of x is 7, because it is 7 sec past 5. Then your next value of x is 15. The third value is 79 because your time is 6:19 or 60+19 sec. Get it?<BR>\n" );
document.write( "Now your given table for the first y value is<BR>\n" );
document.write( "....x........y<BR>\n" );
document.write( "....7......307<BR>\n" );
document.write( "...15......315<BR>\n" );
document.write( "...79......379<BR>\n" );
document.write( "..132......432<BR>\n" );
document.write( "..150......450<BR>\n" );
document.write( "From which we can easily deduce that<BR>\n" );
document.write( "(1) y = x + 300<BR>\n" );
document.write( "Note that the slope of (1) is one and the y intercept is 300 seconds or 5 hours.<BR>\n" );
document.write( "The other set of y values is not a straight line (slope is not constant). I tried to fit a quadratic with little success. </SPAN>\n" );
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