Mathematical Concepts

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Equation

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A statement where two expressions are equal.

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Solution

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A value that makes an equation true.

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Inverse Operations

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Two operations that undo each other.

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Identity

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An equation that is true for all values of the variable and has infinitely many solutions.

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Inequality

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A mathematical sentence that compares inequalities.

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Solution of an Inequality

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A value that makes the inequality true.

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Equivalent Inequalities

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Inequalities that have the same solutions.

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Compound Inequality

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An inequality formed by joining two inequalities with the word “and” or the word “or.”

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Bounded Interval

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An interval that has a finite length.

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Unbounded Interval

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An interval that does not have a finite length.