Finding the Axis of Symmetry and Vertex. When given a quadratic equation in standard form, you can use the following equation to determine equation of the. If the quadratic is written in the form y = a(x – h)2 + k, then the vertex is the point (​h, The only other consideration regarding the vertex is the "axis of symmetry". When written in "vertex form": • (h, k) is the vertex of the parabola, and x = h is the axis of symmetry. • the h represents a horizontal shift (how far left, or right, the.

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