Directrix of a Parabola - Search Videos

How to find the directrix, focus and vertex of a parabola

Learn how to graph a vertical parabola. A parabola is the shape of the graph of a quadratic equation. A parabola is said to be vertical if it opens up or opens down. A vertical parabola results from a quadratic equation in which the x part of the equation is squared. To sketch the graph of a parabola, we first identify the vertex, the focus and ...

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