Apply polynomial models to real- world situations by fitting data to linear, quadratic, cubic, or quartic models.

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Presentation transcript:

Apply polynomial models to real- world situations by fitting data to linear, quadratic, cubic, or quartic models.

 You can use a graphing calculator to find a polynomial to model a particular data set.  Ex: find the polynomial function that models the data.  Enter into L1 and L2  Adjust window and make sure your STAT PLOT is on.  Use 2 nd STAT then CALC Try graphing the LinReg, QuadReg, and CubicReg until you find the best fit.

 For any set of n+1 points in the coordinate plane that pass the vertical line test, there is a unique polynomial of degree at most n that fits the points perfectly. Basically, if you have 2 points, you can graph a line. 3 points that are not on a line can determine a parabola. 4 points not on a line can graph a cubic, etc.