**How to write a quadratic equation in standard?**
https://www.wikihow.com/Graph-a-Quadratic-Equation

Standard form. In this form, the quadratic equation is written as: f (x) = ax 2 + bx + c where a, b, and c are real numbers and a ... Vertex form. ... To graph either of these types of equations, we need to first find the vertex of the parabola, which is the central point (h,k) at the "tip" of the curve. ...

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