What is the domain of f(x) = 1/(x − 3)?

A All real numbers

B All real numbers except x = 3

C x > 3 only

D x ≥ 0

✓ Correct Answer: Option B

The denominator cannot be zero, so x − 3 ≠ 0, meaning x ≠ 3.

💡 Why is B) the correct answer?

The correct answer to the question "What is the domain of f(x) = 1/(x − 3)?" is Option B: All real numbers except x = 3.

The other options — A) All real numbers, C) x > 3 only, D) x ≥ 0 — are incorrect for this SAT Exam Prep question. As explained above: The denominator cannot be zero, so x − 3 ≠ 0, meaning x ≠ 3.

📚 About This SAT Exam Prep Practice Question

This 2-level SAT Exam Prep question from the Math (No Calculator) topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free SAT Exam Prep practice test or use flashcards for spaced repetition review.

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What is the domain of f(x) = 1/(x − 3)?

✓ Correct Answer: Option B

📚 About This SAT Exam Prep Practice Question

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