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What is the range of f(x) = |x - 2| + 3?

Answer and explanation

Correct answer: [3, ∞)

The key property is that an absolute value is always non-negative: |x - 2| ≥ 0 for every real x. Adding 3 gives f(x) = |x - 2| + 3 ≥ 3. The minimum value is attained, not merely approached, when x - 2 = 0, or x = 2; at that input f(2) = 3. As x becomes very large or very negative, |x - 2| grows without bound, so the function has no upper limit. Therefore the range is [3, ∞), and option A is correct. Option B incorrectly excludes the attainable minimum, option C gives the wrong direction and allows values below 3, while option D ignores the lower bound created by the absolute value.

Related tags

RangeAbsolute-ValueMinimum-ValueReal Valued FunctionsTheir Domain And RangeReal Valued Functions Their Domain And RangeRelations And FunctionsMathematicsClass 11 Mcq

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