What is the derivative of f(x) = 2x^2 + 7x + -1?
Difficulty: Medium
About this MCQ
Medium AP Exams item. Correct choice: B. 4x + 7.
- A. 2x^1 + 7
Why not A: “2x^1 + 7” is not 4x + 7.
- B. 4x + 7 ✓
- C. 4x^2 + 7
Why not C: “4x^2 + 7” is not 4x + 7.
- D. 4x^1
Why not D: “4x^1” is not 4x + 7.
Correct answer
B. 4x + 7
Explanation
4x + 7 is the value that answers “What is the derivative of f(x) = 2x^2 + 7x + -1” (option B). Option A (2x^1 + 7) is a different value from 4x + 7. Option C (4x^2 + 7) is a different value from 4x + 7. Option D (4x^1) is a different value from 4x + 7. Keep 4x + 7 as the AP Exams fact for this stem.
Source: Original practice question, MCQsHub
Tags: Using, derivative Using, Using power, 4x + 7
Submitted by: MCQsHub Editorial