A line in the middle of a parabola; the X coordinate of the vertex.

Horizontal Translation

(x-h)^2, If you subtract h, it goes left, if you add h it goes right

x^2+k, goes down for a negative k and up for a positive one.

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Quadratcs

Term	Definition
Vertex Equasion	-b/2a
Axis of Symmetry	A line in the middle of a parabola; the X coordinate of the vertex.
Horizontal Translation	(x-h)^2, If you subtract h, it goes left, if you add h it goes right
Vertical Translation	x^2+k, goes down for a negative k and up for a positive one.