Revise how to identify the y-intercept, turning point and axis of symmetry of a quadratic function. BBC Bitesize Scotland revision for SQA National 5 Maths.

A quadratic function has an equation of the form y = a x 2 + b x + c where b and/or c can be equal to zero, but a is not equal to zero. Its graph is a smooth symmetrical curve.

This story is from November 25, 2001 Williamson’s reason and function of symmetry TNN / Nov 25, 2001, 23:02 IST AA Follow us ...