Mathematics 0580 · IGCSE · Functions

Functions — practice question

(a)[2]

Solve the equation $3x - 8 = 6 - 4x$.

(b)[2]

Factorise the expression $10a^2 + 5a$ fully.

(c)[2]

Factorise the expression $(2x - 3)^2 - 9$ fully.

(d(i))[1]

Find the value of $f(4)$.

(d(ii))[2]

Find the value of $gg(2)$.

(d(iii))[2]

Find the value of $k$ when $g(k) = f(7)$.

Worked solution & mark scheme

This 11-mark question has a full step-by-step worked solution and mark scheme. One marking point: Solve the equation $3x+4x=6+8$.

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