If f(x) = 2x + -3, what is f(-3)?
Difficulty: Easy
About this MCQ
Easy ACT item. Correct choice: C. -9.
- A. -3
Why not A: “-3” is not -9.
- B. -11
Why not B: “-11” is not -9.
- C. -9 ✓
- D. -7
Why not D: “-7” is not -9.
Correct answer
C. -9
Explanation
-9 (option C) is the accepted answer to “If f(x) = 2x + -3, what is f(-3)”. Option A (-3) is a different value from -9. Option B (-11) is a different value from -9. Option D (-7) is a different value from -9. Keep -9 as the ACT fact for this stem.
Source: Original practice question, MCQsHub
Tags: Math, American Exams, Functions, ACT
Submitted by: MCQsHub Editorial
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