What is the derivative of f(x) = 7x^5 + 7x + 8?
Difficulty: Medium
About this MCQ
Medium AP Exams item. Correct choice: B. 35x^4 + 7.
- A. 35x^5 + 7
Why not A: “35x^5 + 7” is not 35x^4 + 7.
- B. 35x^4 + 7 ✓
- C. 35x^4
Why not C: “35x^4” is not 35x^4 + 7.
- D. 7x^4 + 7
Why not D: “7x^4 + 7” is not 35x^4 + 7.
Correct answer
B. 35x^4 + 7
Explanation
35x^4 + 7 is the value that answers “What is the derivative of f(x) = 7x^5 + 7x + 8” (option B). Option A (35x^5 + 7) is a different value from 35x^4 + 7. Option C (35x^4) is a different value from 35x^4 + 7. Option D (7x^4 + 7) is a different value from 35x^4 + 7. Keep 35x^4 + 7 as the AP Exams fact for this stem.
Source: Original practice question, MCQsHub
Tags: Using, derivative Using, Using power, 35x^4 + 7
Submitted by: MCQsHub Editorial