What is the derivative of f(x) = 2x^2 + 3x + -9?
Difficulty: Medium
About this MCQ
Medium AP Exams item. Correct choice: A. 4x + 3.
- A. 4x + 3 ✓
- B. 2x^1 + 3
Why not B: “2x^1 + 3” is not 4x + 3.
- C. 4x^1
Why not C: “4x^1” is not 4x + 3.
- D. 4x^2 + 3
Why not D: “4x^2 + 3” is not 4x + 3.
Correct answer
A. 4x + 3
Explanation
4x + 3 is the value that answers “What is the derivative of f(x) = 2x^2 + 3x + -9” (option A). Option B (2x^1 + 3) is a different value from 4x + 3. Option C (4x^1) is a different value from 4x + 3. Option D (4x^2 + 3) is a different value from 4x + 3. Keep 4x + 3 as the AP Exams fact for this stem.
Source: Original practice question, MCQsHub
Tags: Using, derivative Using, Using power, 4x + 3
Submitted by: MCQsHub Editorial