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What Are Intervals?

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    Definition
    Interval on a Number Line
    Activity Set 1
    Intervals as Inequalities
    Activity Set 1
    Interval Notation Using Square Brackets and Parentheses
    Activity Set 1
    Open Intervals
    Activity Set 1
    Closed Intervals
    Activity Set 1
    Half-open Intervals
    Activity Set 1
    Union of Intervals
    Activity Set 1
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    What is the union of the two intervals?

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    Intersection of Intervals
    Activity Set 1
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