If f(x) = 3x, what is f(6)?

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Study for the PSAT 8/9 Math Test. Practice with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

If f(x) = 3x, what is f(6)?

Explanation:
When a function is given as f(x) = 3x, it means the output is three times the input. To find f(6), substitute x with 6: f(6) = 3 × 6 = 18. So the result is 18.

When a function is given as f(x) = 3x, it means the output is three times the input. To find f(6), substitute x with 6: f(6) = 3 × 6 = 18. So the result is 18.

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