y = x^8+2*x^7-3*x^6+2.3*x^5-2*x^4+3*x^3-6*x^2+25*x-3
and the graph on the calculator is different from one on my Ti-89 Titanium. Then I double check an online grapher at:
here
It seems like the casio one is wrong.
Casio fx-9750GII
Edited by DanielT, 04 July 2009 - 06:52 PM.