GCSE questions and solutions. Topic: functions. Description: range of questions involving functions, their inverses, and composite functions. Also requires students to solve and factorise linear and quadratic equations.

GCSE questions and solutions. Topic: quadratic equations. Description: factorising and solving quadratic equations of the forms x^2+bx+c and ax^2+bx+c. Using the difference of two squares to factorise quadratics.

GCSE questions and solutions. Topic: equations of straight lines. Description: finding equations of parallel/perpendicular lines using y=mx+c in various scenarios.

GCSE questions and solutions. Topic: SOH CAH TOA Description: finding both side lengths and angle sizes in right-angled triangles using sin, cos and tan.