Mathematics 4024 · O Level · Functions

Functions — practice question

Let $f(x)=\frac{1}{3x+2}$.
(a)[1]

Find the value of $f(-2)$.

(b)[2]

Find the value of $f^{-1}(x)$.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Hence $f(-2)=-\frac14$.” …

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