What is the derivative of f(x) = 2x^4 + 1x + -2?
Difficulty: Medium
About this MCQ
Medium AP Exams item. Correct choice: A. 8x^3 + 1.
- A. 8x^3 + 1 ✓
- B. 2x^3 + 1
Why not B: “2x^3 + 1” is not 8x^3 + 1.
- C. 8x^4 + 1
Why not C: “8x^4 + 1” is not 8x^3 + 1.
- D. 8x^3
Why not D: “8x^3” is not 8x^3 + 1.
Correct answer
A. 8x^3 + 1
Explanation
8x^3 + 1 is the value that answers “What is the derivative of f(x) = 2x^4 + 1x + -2” (option A). Option B (2x^3 + 1) is a different value from 8x^3 + 1. Option C (8x^4 + 1) is a different value from 8x^3 + 1. Option D (8x^3) is a different value from 8x^3 + 1. Keep 8x^3 + 1 as the AP Exams fact for this stem.
Source: Original practice question, MCQsHub
Tags: Using, derivative Using, Using power, 8x^3 + 1
Submitted by: MCQsHub Editorial