What is the derivative of f(x) = 7x^2 + 8x + 5?
Difficulty: Medium
About this MCQ
Medium AP Exams item. Correct choice: C. 14x + 8.
- A. 14x^2 + 8
Why not A: “14x^2 + 8” is not 14x + 8.
- B. 14x^1
Why not B: “14x^1” is not 14x + 8.
- C. 14x + 8 ✓
- D. 7x^1 + 8
Why not D: “7x^1 + 8” is not 14x + 8.
Correct answer
C. 14x + 8
Explanation
14x + 8 is the value that answers “What is the derivative of f(x) = 7x^2 + 8x + 5” (option C). Option A (14x^2 + 8) is a different value from 14x + 8. Option B (14x^1) is a different value from 14x + 8. Option D (7x^1 + 8) is a different value from 14x + 8. Keep 14x + 8 as the AP Exams fact for this stem.
Source: Original practice question, MCQsHub
Tags: Using, derivative Using, Using power, 14x + 8
Submitted by: MCQsHub Editorial