E6.5 Non-right-angled triangles E6.6 Pythagoras’ theorem and trigonometry in 3D18.1 Review of quadratic graphs (the parabola) Equations of the form y-x2+ax+b Sketching quadratic functions 18.2 Drawing reciprocal graphs (the hyperbola) 18.3 Using graphs to solve quadratic equations 18.4 Simultaneous linear and non-linear equations 18.5 Other non-linear graphs Graphs of equations with combinations of terms Exponential graphs 18.6 Finding the gradient of a curve 18.7 Derived functions Differentiating sums and differences Special cases Equations of tangents Turning points