Vertex Form and Parabola Transformations - KS3, KS4, GCSE Maths 

This video explains the vertex form of quadratic equations, the influence of the vertex (h,k) on a parabola's position, and transforming the parabola using vertex form.
Revision cards, exercises, and further maths help here:
maths-angel.co.uk/vertex-form
Timestamps:
00:00 What is the Vertex Form of Quadratic Equations
00:45 How to Find the Vertex of a Quadratic Equation
01:28 Transformations Using the Vertex
02:30 Creating Quadratic Equations Using Vertex Form