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

Roots of unity are the roots of the polynomials of the form x n – 1. For example, when n = 2, this gives us the quadratic polynomial x 2 – 1. To find its roots, just set it equal to 0 and solve: x 2 – ...

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.