College Math CLEP Prep Practice Exam

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Write the following set as interval notation. {x | x ≤ 6 and x ≥ -2}

[-2, 6]
(-2, 6]
[-2, 6)
(-2, 6)

The correct answer is: [-2, 6]

This set includes all numbers between -2 and 6, including the endpoints, so the correct notation is [-2, 6]. The other options either include only one of the endpoints (B, C) or exclude both endpoints (D), making them incorrect.