I'm glad you were able to figure it out.
Yes, if you exchange the x & y coordinates the new points are described by the inverse relation. For example, if the points are given by x-squared, exchanging x & y will yield the square-root function; if the points are from an exponential function, exchanging x & y will yield a logarithmic function.
"Education is what remains after one has forgotten everything he learned in school"
Albert Einstein
>>> R.Eddy <e6bwhiz <at> hotmail.com> 1/14/2008 8:20 AM >>>
Thank you both for your help. We figured it out. There were no negative
coordinates, but the first one was 0,0. So I removed it and all the trendlines
are now available. It fits a "power" function perfectly. Before I had you
help I tried reversing all the x and y coordinates. It fit the "Polynomial"
function perfectly. Is this true for all graph funtions? That one function
inherently has an opposite function when the coordinates are switched? Thanks,
still a math newbie.
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