Axis of Symmetry: A line on which a graph is reflected onto itself.
Center of the ellipse: The point where the major and minor perpendicular axis intersect.
Completing the Square: Method that finds the constant term in an incomplete perfect square trinomial of a second degree equation to solve it.
Conic section: A figure that is obtained slicing a double cone with a plane. (parabola, circle, hyperbola, and ellipse)
Ellipse All the points in a plane for which the distance to the foci (each focus) is constant.
Factoring: The process to brake a polynomial down into the product of several factors.
Factors: All whole numbers that are multiplied together to yield another number.
Factored Form: Any polynomial that is written as the product of polynomials of lower degree that may be obtained from the original polynomial.
Focus of an ellipse: Each one of the points in the major axis of the ellipse, from which sum of the distance from each to the set of points in the ellipse is constant.
Foci: Plural for focus.
Major axis: The major of the two perpendicular axis of symmetry in an ellipse, and in which are located the foci.
Minor axis: The smallest of the two perpendicular axis of symmetry in an ellipse.
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