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What happens on the number line for the interval ([\frac{1}{2},\frac{5}{2}])?

Answer and explanation

Correct answer: Closed circles at both endpoints

In the interval \([\frac{1}{2},\frac{5}{2}]\), square brackets include both boundary values. Hence, closed circles are drawn at both \(\frac{1}{2}\) and \(\frac{5}{2}\), with the segment between them represented. Open circles are used when an endpoint is not included. Exam tip: remember that square brackets mean closed circles, while parentheses mean open circles.

Related tags

Linear InequalitiesNumber LineInterval NotationClosed IntervalEndpointsFractionsRepresentation On Number LineMathematics

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