Easy MCQ +4 / -1

The inverse of f(x) = (3x - 2) / 4 is:

  1. A (4x + 2) / 3 Correct answer
  2. B (4x - 2) / 3
  3. C (3x + 4) / 2
  4. D (3x - 4) / 2

Solution

y = (3x-2)/4 → 4y = 3x - 2 → 3x = 4y + 2 → x = (4y+2)/3. So f⁻¹(x) = (4x+2)/3.

About this question

Subject: Mathematics · Chapter: Sets, Relations and Functions · Topic: Composite and Inverse Functions

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