🎓 CLEP Exam Prep

Find the inverse function of f(x) = (3x + 2) / (x - 1)?

A f⁻¹(x) = (x + 2) / (x - 3)
B f⁻¹(x) = (x - 2) / (x + 3)
C f⁻¹(x) = (x + 1) / (3x - 2)
D f⁻¹(x) = (3x - 1) / (x + 2)

✓ Correct Answer: Option A

Let y = f(x). Swap x and y: x = (3y + 2) / (y - 1). Solve for y: x(y - 1) = 3y + 2 => xy - x = 3y + 2 => xy - 3y = x + 2 => y(x - 3) = x + 2 => y = (x + 2) / (x - 3).

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