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How to Derive the Vertex Formula

http://www.greenemath.com/ In this video, we will learn how to derive the vertex formula. The vertex formula, which is h = -b/2a, k = f(h), allows us to quickly write a quadratic function in vertex form: f(x) = a(x - h)^2 + k, where (h, k) is the vertex and x = h is the axis of symmetry. 00:00 What is the vertex form of a quadratic function 01:45 Deriving the vertex form by completing the square 07:18 Example problem, finding the vertex form 10:23 Graphing a quadratic function from vertex form Join this channel to get access to perks:    / @greenemath