SAT Math Multiple Choice Question 909: Answer and Explanation

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Test Information

Question: 909

9. If f(x) = x3 + 6, what is the value of f (3)?

  • A. 15
  • B. 33
  • C. 39
  • D. 729

Correct Answer: B

Explanation:

B

Difficulty: Easy

Category: Passport to Advanced Math / Functions

Strategic Advice: When asked to find the value of f(a number), just plug in the correct value and simplify.

Getting to the Answer: Substitute 3 for x and simplify: f (3) = 33 + 6 = 27 + 6 = 33. Choice (B) is the correct answer.

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