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How is x ≠ 2 correctly shown on the number line?

Answer and explanation

Correct answer: The whole number line shaded with an open hole at 2

The governing concept is that the symbol ≠ excludes exactly one value while allowing every other real number. Therefore, x may be less than 2 or greater than 2, but it cannot equal 2. On a number line, an excluded endpoint is marked by an open circle or hole, so 2 must be left unfilled. Because values on both sides of 2 are allowed, both the left and right portions of the number line are shaded. In interval notation, the solution is (-∞, 2) ∪ (2, ∞). Hence option B is correct. Option A incorrectly includes only the excluded value. Option C includes 2 and shows only values to the right, while option D excludes 2 but represents only values to the left.

Related tags

Linear-InequalitiesExcluded-PointNumber-LineRepresentation On Number LineLinear InequalitiesMathematicsClass 11 Mcq

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