Mathematics 4024 · O Level · Functions

Functions — practice question

The functions are $f(x) = \frac{3 - 2x}{5}$ and $g(x) = \frac{x - 7}{4}$.

(a)[1]

Work out $f(-4)$.

(b)[3]

Determine $f^{-1}(x)$.

(c)[3]

$g(p) = f(p + 1)$. Work out the value of $p$.

Worked solution & mark scheme

This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The required value is $2.2$.” …