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Which inequality is represented by an open circle at 6 and a ray extending to the left?

Answer and explanation

Correct answer: x < 6

The governing concept is interpreting an endpoint and direction on a number line. An open circle at 6 means that 6 is excluded, so the inequality must be strict rather than inclusive. A ray extending to the left represents values smaller than 6, because numbers decrease as one moves left. Combining these facts gives x < 6, so option C is correct. Option D has the correct direction but includes 6, which would require a closed circle. Options A and B describe values to the right of 6 and therefore conflict with the ray’s direction; B also includes the endpoint. The graph can be written in interval notation as (-∞, 6), confirming that 6 is not included.

Related tags

Linear InequalitiesOpen CircleNumber LineClass 11Representation On Number LineMathematicsClass 11 Mcq

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