What is the derivative of f(x) = 5x^5 + 8x + 7?
Difficulty: Medium
About this MCQ
Medium AP Exams item. Correct choice: C. 25x^4 + 8.
- A. 25x^5 + 8
Why not A: “25x^5 + 8” is not 25x^4 + 8.
- B. 5x^4 + 8
Why not B: “5x^4 + 8” is not 25x^4 + 8.
- C. 25x^4 + 8 ✓
- D. 25x^4
Why not D: “25x^4” is not 25x^4 + 8.
Correct answer
C. 25x^4 + 8
Explanation
25x^4 + 8 is the value that answers “What is the derivative of f(x) = 5x^5 + 8x + 7” (option C). Option A (25x^5 + 8) is a different value from 25x^4 + 8. Option B (5x^4 + 8) is a different value from 25x^4 + 8. Option D (25x^4) is a different value from 25x^4 + 8. Keep 25x^4 + 8 as the AP Exams fact for this stem.
Source: Original practice question, MCQsHub
Tags: Using, derivative Using, Using power, 25x^4 + 8
Submitted by: MCQsHub Editorial