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

A parabola is a symmetrical, curved, U-shaped graph. The equation of a parabola graph is y = x² Parabolas exist in everyday situations, such as the path of an object in the air, headlight shapes ...

“The vertex is at x = 4,” she said, “because the roots are x = 1 and x = 7, and the roots are symmetric about the vertex.” She used the fact that the parabola is the graph of a quadratic polynomial, ...