What Are Intervals?Menu1DefinitionInterval on a Number LineActivity Set 12Intervals as InequalitiesActivity Set 13Interval Notation Using Square Brackets and ParenthesesActivity Set 14Open IntervalsActivity Set 15Closed IntervalsActivity Set 16Half-open IntervalsActivity Set 1Is this a half-open interval?CheckResetContinue7Union of IntervalsActivity Set 18Intersection of IntervalsActivity Set 19Boss Battle
