What is the derivative of f(x) = 6x^3 + 2x + 1?
Difficulty: Medium
About this MCQ
Medium AP Exams item. Correct choice: B. 18x^2 + 2.
- A. 18x^3 + 2
Why not A: “18x^3 + 2” is not 18x^2 + 2.
- B. 18x^2 + 2 ✓
- C. 6x^2 + 2
Why not C: “6x^2 + 2” is not 18x^2 + 2.
- D. 18x^2
Why not D: “18x^2” is not 18x^2 + 2.
Correct answer
B. 18x^2 + 2
Explanation
18x^2 + 2 is the value that answers “What is the derivative of f(x) = 6x^3 + 2x + 1” (option B). Option A (18x^3 + 2) is a different value from 18x^2 + 2. Option C (6x^2 + 2) is a different value from 18x^2 + 2. Option D (18x^2) is a different value from 18x^2 + 2. Keep 18x^2 + 2 as the AP Exams fact for this stem.
Source: Original practice question, MCQsHub
Tags: Using, 6x^2 + 2, 2x + 1, 8x^3 + 2
Submitted by: MCQsHub Editorial