One of the common forms for quadratic functions is called vertex form, because it highlights the coordinates of the vertex of the function's graph.

Learn how to graph any quadratic function that is given in vertex form. Here, Sal graphs y=-2 (x-2)²+5. Created by Sal Khan.

Graph quadratic functions that are given in the vertex form a (x+b)²+c. For example, graph y=-2 (x-2)²+5.

So, you graph the vertex and then find points to the left and right of the vertex. When Y is isolated already and the equation is in vertex form, it is easier to pick values of X and calculate Y …

When we work with graphs, it's helpful to be able to talk about the set of vertices and the set of edges. We usually denote the vertex set by V and the edge set by E .

If the parabola opens upward, then the vertex is the lowest point on the parabola. If the parabola opens downward, then the vertex is the highest point on the parabola.

To graph quadratic vertex-form equations, we identify the vertex point, plot random (x, y) points nearby, then connect them to make a parabolic shape. We can do something similar for …

3. Vertex All parabolas have a vertex, which is their tip. When a parabola is open up, its vertex will be the bottom-most point. When a parabola is open down, its vertex will be the top-most point.

Sal rewrites a quadratic equation in vertex form and shows how it reveals the vertex of the corresponding parabola. Created by Sal Khan and Monterey Institute for Technology and …

Now, there's many ways to find a vertex. Probably the easiest, there's a formula for it. And we talk about where that comes from in multiple videos, where the vertex of a parabola or the x …