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# Alg1B Unit 2

### Polynomials

TermDefinition
Polynomial An expression where every variable has a whole number exponent
Monomial A polynomial with one term
Binomial A polynomial with two terms
Trinomial A polynomial with three terms
Simplify To combine like terms by way of addition or subtraction or reduce fractional expressions where applicable
Like Terms Two or more terms that are either constants or contain the same variable part or same variables and powers
Constant Any real number
Descending Order When terms are written from greatest to least degree
Degree of Polynomial The greatest degree of its terms
FOIL First, Outer, Inner, Last - method of multiplying two binomials
Factoring The process of rewriting an expression or polynomial as an equivalent product of two or more factors
Greatest Common Factor (GCF) The greatest factor all terms share in common
Quadratic Expression Polynomials of the form ax^2+bx+c, where a, b, and c are coefficients, and a is non-zero
Perfect Square Trinomial A quadratic expression that is the product of a binomial, either (a+b) or (a−b), squared
Difference of Squares A quadratic expression of the form a^2−b^2 that can be factored as (a+b)(a−b)
Range The difference between the minimum and maximum value of a data set.
Outlier A data value that is less than 1.5 times the interquartile range below the first quartile or is greater than 1.5 times the interquartile range above the third quartile.
Center The mean or median of a data set.
Spread The range, the standard deviation, or the interquartile range of a data set.
Two-way frequency table A visual display of the counts of frequencies for two categorical variables.
Joint frequency Entries found in the interior cells (non-total column and row) in a two-way frequency table, which are the counts of data where both variables occur.
Marginal frequency The total of the cells in a row or column for a category of a two-way frequency table.
Categorical data In statistics, categorical data, or qualitative data, can take on one of a limited, and usually fixed, number of possible values, which are assigned to groups based on their properties.
Created by: schaffermath

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