2.1 Quadratic Functions
Poly- Many
Nomial- Terms
Terms- can be added/subtracted
Variables- can be mult/divided
A Polynomial Function is in the form of:
The value of n must be a whole number, and the coefficients are all real numbers.
The degree of the polynomial function is the highest value for n where an is not equal to 0
The Quadratic Function
The Standard form of a Quadratic equation
Why put it in this form? It is much easier to read and shift/transform when graphing.
A convenient and easy method is Completing the Square
Eg.
The first step is to move the single number (6) over as far as possible
Take half of b then square it
Simplify/factor it
Graph
http://www.khanacademy.org/math/trigonometry/polynomial_and_rational/quad_formula_tutorial/v/solving-quadratic-equations-by-square-roots
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