w
3.2 Power Functions; Curve Fitting
EXAMPLE 3 Fitting Data to a Power Function
In order to find the power function of best fit repeat the steps given for finding the
quadratic function of best fit. However, instead of selecting 5:QuadReg, select
A:PwrReg. w
3.3 Polynomial Functions; Curve Fitting
EXAMPLE 7 A Cubic Function of Best Fit
In order to find the power function of best fit repeat the steps given for finding the
quadratic function of best fit. However, instead of selecting 5:QuadReg, select
6:CubicReg. w
4.2 Complex Numbers; Quadratic Equations with a Negative
Discriminant
EXAMPLE 1 Adding and Subtracting Complex Numbers
(a) (3 + 5i) + (-2 + 3i)
SOLUTION From the HOME screen, press ( 3 + 5
To get the i, press 2
nd
and then press the decimal point.
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