GMAT Functions — practice questions

Explore 2 free Functions questions in GMAT Quantitative Reasoning. Open each question or exercise to read its content, reference answers and available explanation.

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Functions questions and exercises with answers

Showing questions 1–2 of 2.

If f(x) = 2x + 1, f(3) =Read the answer and worked solution →Domain of f(x) = √(x − 3) is:Read the answer and worked solution →

Worked practice questions

If f(x) = 2x + 1, f(3) =

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Correct answer: D. 7

1. f(3) = 2(3) + 1 = 7. _Source: 501-GMAT-Questions Section 4 / Manhattan Quant Bank_

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Domain of f(x) = √(x − 3) is:

x > 3
x ≥ 3
x ≤ 3
all real

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Correct answer: B. x ≥ 3

1. Need x − 3 ≥ 0 → x ≥ 3. _Source: 501-GMAT-Questions Section 4 / Manhattan Quant Bank_

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