What is the inverse function of f(x) = (x + 5) / 2?
✓ Correct Answer: Option A
Let y = (x + 5) / 2. Swap x and y: x = (y + 5) / 2. Solve for y: 2x = y + 5, so y = 2x - 5. Thus, f⁻¹(x) = 2x - 5.
Let y = (x + 5) / 2. Swap x and y: x = (y + 5) / 2. Solve for y: 2x = y + 5, so y = 2x - 5. Thus, f⁻¹(x) = 2x - 5.