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Which is the correct interval form of x ≥ −3?

Answer and explanation

Correct answer: [−3, ∞)

The inequality x ≥ −3 includes −3 itself and every real number greater than −3. In interval notation, inclusion of the left endpoint is shown with a square bracket, so the left side is [−3. Infinity is never an actual endpoint, so it always uses a round parenthesis. Hence the solution set is [−3, ∞), answer B.

Related tags

Interval-NotationLinear-InequalitiesNumber-LineSetsRepresentation On Number LineLinear InequalitiesMathematicsClass 12 Mcq

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