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How is ( x\ne -6 ) correctly shown on the number line?

Answer and explanation

Correct answer: Whole number line shaded with an open hole at ( -6 )

Direct answer: option A is correct. The statement \(x\ne-6\) means x may be every real number except \(-6\). On a number line, shade the entire line because all other numbers are allowed, and mark \(-6\) with an open hole because that single value is excluded. Option A shows exactly this. Option B uses a closed dot, which means \(x=-6\) is included, the opposite of the condition. Option C also includes \(-6\) and keeps only numbers to its right, so it represents \(x\ge-6\), not the required set. Option D excludes \(-6\) correctly with an open point but shades only the left side, representing \(x<-6\); numbers to the right should also be included. The important distinction is: an open point means “not included,” while shading shows the allowed values. Memory cue: “not equal” means the whole number line with one hole.

Related tags

Linear-InequalitiesExcluded-PointNumber-Line

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