Focus of a Parabola

Identify a quadratic function written in general and vertex form. Given a quadratic function in general form, find the vertex. Define the domain and range of a quadratic function by identifying the vertex as a maximum or minimum. The

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Parabola Calculator

How to Find the Vertex from the Graph of a Parabola Step 1: Identify if the graph opens up or down. If the graph approaches infinity as x x gets bigger then the graph opens up. If the