What is the derivative of f(x) = 2x^3 + 7x + 4?
Difficulty: Medium
About this MCQ
Medium AP Exams item. Correct choice: D. 6x^2 + 7.
- A. 6x^3 + 7
Why not A: “6x^3 + 7” is not 6x^2 + 7.
- B. 6x^2
Why not B: “6x^2” is not 6x^2 + 7.
- C. 2x^2 + 7
Why not C: “2x^2 + 7” is not 6x^2 + 7.
- D. 6x^2 + 7 ✓
Correct answer
D. 6x^2 + 7
Explanation
6x^2 + 7 is the value that answers “What is the derivative of f(x) = 2x^3 + 7x + 4” (option D). Option A (6x^3 + 7) is a different value from 6x^2 + 7. Option B (6x^2) is a different value from 6x^2 + 7. Option C (2x^2 + 7) is a different value from 6x^2 + 7. Keep 6x^2 + 7 as the AP Exams fact for this stem.
Source: Original practice question, MCQsHub
Tags: Using, derivative Using, Using power, 6x^2 + 7
Submitted by: MCQsHub Editorial