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Which inequality has a number line representation with an open circle at (20) and shading to the right?

Answer and explanation

Correct answer: \(x>20\)

An open circle shows that 20 is not included in the solution, so the inequality must be strict. Shading to the right represents all numbers greater than 20. Therefore, the correct inequality is \(x>20\). In \(x\geq 20\), 20 would be included and shown with a closed circle. Exam tip: rightward shading means ‘greater than’, while an open circle means ‘not equal to’.

Related tags

Linear InequalitiesNumber LineOpen CircleStrict InequalityGreater ThanRepresentation On Number LineMathematicsClass 11 Mcq

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