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If the number line has an open circle at 13 and a line drawn to the left, what is the inequality?

Answer and explanation

Correct answer: x < 13

A number-line representation communicates two facts: the direction of shading identifies smaller or larger values, and the endpoint symbol identifies inclusion. An open circle at 13 means that 13 itself is excluded, so the inequality must use a strict sign rather than ≤ or ≥. Shading to the left represents numbers smaller than 13. Combining these facts gives x < 13. Therefore option C is correct. The statement x ≤ 13 would require a closed circle at 13 because equality would be allowed. The right-pointing alternatives describe values greater than 13 and do not match the leftward shading.

Related tags

Linear InequalitiesNumber LineOpen EndpointClass 11Representation On Number LineMathematicsClass 11 Mcq

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