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# Alg2 Poly Functions

### Polynomial Functions Terms to Know

TermDefinition
Leading Coefficient The coefficient of the first term of a polynomial in standard form.
Constant or constant term A term in a function or expression that does not contain a variable.
Factor A number or expression that divides into a number or expression evenly (remainder of zero)
Standard Form of a Polynomial When a polynomial is written so the terms are in order from greatest degree to least degree.
Perfect Square A number whose positive square root is a whole number.
End Behavior The trends in the y-values of a functions as the x-values approach positive and negative infinity. Where the graph is going up and down as the x-values go to positive and negative infinity.
Monomial A number or product of numbers and variables with whole-number exponents.
Multiplicity When a factor (x -r) appears more than once when a polynomial is factored it is said to have a multiplicity of the number of times it appears.
Polynomial A monomial or the sum or difference of monomials.
Polynomial Function A function made up of the sum or difference of monomials.
Synthetic Division A shorter method of dividing a polynomial by a binomial (x - a) using only the coefficients of the polynomial.
Turning Point A point on the graph that is a local maximum or minimum. It is where the graph will change directions (from increasing to decreasing or decreasing to increasing).
Discriminant b^2 - 4ac
Created by: craigd

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