Revise how to recognise and determine the equation of a quadratic function from its graph. BBC Bitesize Scotland revision for SQA National 5 Maths.

Armen Edigarian, Jan Wiegerinck, The Pluripolar Hull of the Graph of A Holomorphic Function with Polar Singularities, Indiana University Mathematics Journal, Vol. 52, No. 6 (2003), pp. 1663-1680 ...

Worked examples The graph below has a turning point (3, -2). Write down the nature of the turning point and the equation of the axis of symmetry.