A quantity that makes an equality or inequality true
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Compound Inequality
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two inequalities joined by the word "and" or by the word "or." (the picture is an "and" statement)
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Empty Set
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Is the set that contains no elements.
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Discrete Function
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A set of individual points that when graphed can not be connected by a single line.
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Properties of Equality
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the rule of algebra used to transform equations into equivalent equations
2. Whatever you do to one side of an equation you must do to the other
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And Statement
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Both parts have to be true in order for it to be true
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Literal Equations
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An equation that involves two or more variables
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Dependent Variable
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a variable (often denoted by y ) whose value depends on that of another.
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Zero Product Property
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if a and b are real numbers such that the product ab equal 0, then a = 0 or b = 0
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Ordered Pairs
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Pairs of numbers (x,y) that can represent a point in a coordinate plane.
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Absolute Value
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The distance a number is from zero on a number line. ALWAYS POSITIVE because distance cannot be negative
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Properties of Inequality
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Whatever you do to one side of an inequality has to be done to the other. CAUTION if you multiply or divide by a negative the inequality sign will switch direction
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Independent Variable
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a variable (often denoted by x ) whose value does not depend on that of another.
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Or Statement
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Only one part has to be true for it to be true
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Continuous Function
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Represented by a graph, which has no gaps, breaks or holes.
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Equation
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A mathematical sentence that shows that two expressions are equivalent using an equal sign