SPM Add Maths Practice Questions - Sijil Pelajaran Malaysia (SPM) Additional Mathematics Matematik Tambahan (3472) Exam

The function f(x) = 4x - 3 has an inverse f^-1(x). What is f^-1(x)?

(x - 3)/4 4x + 3 1/(4x - 3) (x + 3)/4

Correct Answer:

(x + 3)/4

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