IGCSE Additional Mathematics Practice Questions - Cambridge IGCSE Additional Mathematics (0606) Exam

The function f is defined by f(x) = 3x - 2 for all real x. Find f^-1(x).

(x + 2)/3 (x - 2)/3 3/(x - 2) (2 - x)/3

Correct Answer:

(x + 2)/3

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