a symbol or letter used to represent one or more numbers.
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range
Front
all possible Y's of a given f(X)
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domain
Front
all possible X's
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absolute value
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the distance of a number from zero on a number line.
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expression
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an expression that contains at least one variable.
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compound inequality
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two or more inequalities joined together by either "and" or "or".
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constant
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quantity whose value does not change
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interval notation
Front
A notation for describing an interval on a number line. The interval's endpoint(s) are given, and a parenthesis or bracket is used to indicate whether each endpoint is included in the interval.
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additive inverse
Front
the opposite of a number that when you add = 0
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equation
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a statement that 2 expressions are equal
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like terms
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two or more terms that contain the same variable.
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zero of a function
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For the function f, any number x such that f(x) = 0
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coefficient
Front
a number multiplied by a variable in an algebraic expression.
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inverse operations
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operations that undo each other
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Foil
Front
to multiply 2 binomials: First, outer, Inner, last