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TedTalk on the "Long Tail" by Chris Anderson, editor of WIRED magazine. Almost every graph in this TedTalk could be used in a Pre-calculus
level class. These are near-perfect exponential and logistic curves. The "long tail" that Anderson speaks of is, of course, the curve approaching the ASYMPTOTE!!! Real math in real life with modern data (VOIP users, Hybrid car sales, the number of songs that can be stored on a $400
hard drive). Tell me this isn't a math project waiting to happen. Here are a couple of snagged graphs from the talk and a link to the original article in WIRED.
TedTalk on the "Technology's Accelerating Power" by Ray Kurzweil. This TedTalk is filled with beautiful exponential graphs showing
how the progress of technology is exponential. Graphs on DNA sequencing, the world-wide-web, size of computers, evolution of technology, etc. Here are a couple of snagged graphs from the talk. You might also be interested in Kurzweil's
website.
 
PurpleMath Higher Order Polynomial Graphs: I liked the purplemath.com web site. Instead of being a "gee-whiz" site, it seems to
be a very well done self paced algebraic tutorial site. I really liked the 5-page "practical lesson" on higher order polynomial graphs. It contains many good quality graphs with each discussion section. Covered are 1) end behavior of polynomial graphs, 2) roots and multiplicity, 3) bounce points and
"flexing" points at roots, 4) turning points and polynomial degree, and 5) graphing polynomials in factored form. I will definitely make this tutorial a required activity for my College Algebra students next autumn. (contributed by Karen Wilson, Math on the Web Participant, MCC, Winter 2007)
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