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What is the correct number line representation of \(3x+4\ge -2\)?

Answer and explanation

Correct answer: Closed circle at \(-2\) and shading to the right

Subtracting 4 from both sides of \(3x+4\ge -2\) gives \(3x\ge -6\). Dividing by 3 gives \(x\ge -2\). Since \(\ge\) includes \(-2\), the point \(-2\) is shown with a closed circle, and values greater than \(-2\) are shaded to the right. An open circle is used for strict inequalities such as \(>\) or \(<\). Exam tip: First write the inequality in terms of \(x\), then use the sign to choose the circle and direction.

Related tags

Linear InequalitiesNumber LineClosed CircleInequality SolvingClass 11 MathematicsRepresentation On Number LineMathematicsClass 11 Mcq

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