If f(x) = 5x + -9, what is f(6)?

About this MCQ

Easy SAT item. Correct choice: D. 21.

Correct answer

D. 21

Explanation

21 (option D) is the accepted answer to “If f(x) = 5x + -9, what is f(6)”. Option A (39) is a different value from 21. Option B (26) is a different value from 21. Option C (16) is a different value from 21. Keep 21 as the SAT fact for this stem.

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