![]() ![]() (h,k) is the vertex as you can see in the picture below. ![]() ya (xh)2 k Intercept form is used for completing the square or finding the intercepts or solutions of the graph. The vertex form of a parabolas equation is generally expressed as: y a ( x h) 2 k. History Vertex is part of Euclidean Geometry, first published in a book about Geometry in the late 19th century. For example, in the above figures, points A, B, C, D, and E are vertices. \)(b) calculates two points to the right of the axis of symmetry, and mirror points on the left of the axis of symmetry make for an accurate plot of the parabola. Vertex form is used to find the vertex of the function to graph it. Vertex is a point on a polygon where the sides or edges of the object meet or where two rays or line segments meet. ![]()
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