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Mathematics 18 Online
OpenStudy (anonymous):

Graph the equation f(x) = x^3 + x^2 - 5x + 3. Ans: http://img5.imageshack.us/img5/4053/fig41.png but graphing f(-1) or f(-2) to check in between the x- and y-intercept returns values of 8 and 9, respectively -- ?? So what is up with that.

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