What is the derivative of f(x) = 1x^2 + 8x + -9?
Difficulty: Medium
About this MCQ
Medium AP Exams item. Correct choice: B. 2x + 8.
- A. 2x^1
Why not A: “2x^1” is not 2x + 8.
- B. 2x + 8 ✓
- C. 2x^2 + 8
Why not C: “2x^2 + 8” is not 2x + 8.
- D. 1x^1 + 8
Why not D: “1x^1 + 8” is not 2x + 8.
Correct answer
B. 2x + 8
Explanation
2x + 8 is the value that answers “What is the derivative of f(x) = 1x^2 + 8x + -9” (option B). Option A (2x^1) is a different value from 2x + 8. Option C (2x^2 + 8) is a different value from 2x + 8. Option D (1x^1 + 8) is a different value from 2x + 8. Keep 2x + 8 as the AP Exams fact for this stem.
Source: Original practice question, MCQsHub
Tags: Using, derivative Using, Using power, 2x + 8
Submitted by: MCQsHub Editorial