What is the derivative of f(x) = 2x^3 + 4x + -9?
Difficulty: Medium
About this MCQ
Medium AP Exams item. Correct choice: D. 6x^2 + 4.
- A. 2x^2 + 4
Why not A: “2x^2 + 4” is not 6x^2 + 4.
- B. 6x^2
Why not B: “6x^2” is not 6x^2 + 4.
- C. 6x^3 + 4
Why not C: “6x^3 + 4” is not 6x^2 + 4.
- D. 6x^2 + 4 ✓
Correct answer
D. 6x^2 + 4
Explanation
6x^2 + 4 is the value that answers “What is the derivative of f(x) = 2x^3 + 4x + -9” (option D). Option A (2x^2 + 4) is a different value from 6x^2 + 4. Option B (6x^2) is a different value from 6x^2 + 4. Option C (6x^3 + 4) is a different value from 6x^2 + 4. Keep 6x^2 + 4 as the AP Exams fact for this stem.
Source: Original practice question, MCQsHub
Tags: Using, derivative Using, Using power, 6x^2 + 4
Submitted by: MCQsHub Editorial