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### 22 Cards in this Set

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• Back
 Axis of symmetry the line that divides a figure into two parts that are mirror image Center of a circle the point that is the same distance from every point on the circle Center of a hyperbola the midpoint between two vertices, which also is the midpoint between two foci Center of an ellipse the midpoint of the major axis Circle the set of all points in a plane at a distance r from a given point Conic section a curve formed by the intersection of a plane and a double cone Conjugate Axis this axis is perpendicular to the transverse axis at the center length is 2b Co-vertices of an ellipse the endpoints of the minor axis Directrix the fixed line Ellipse the set of all points P in a plane such that the sum of the distances from P to two fixed points F1 and F2 is a constant k Focal Length the distance between the vertex and the focus Focus of a parabola the set of all points P in a plane that are the same distances from a fixed line and a fixed point not on the line. Focus of a hyperbola the set of all points P in a plane such that the difference of the distances from P to two points is constant Hyperbola a set of points P in a plane such that the difference between the distances from P to the Foci F1 and F2 is a given constant k Major Axis the segment that contains the foci of the ellipse and has endpoints on the ellipse Radius the distance between the center of the circle and any point on the circumference Standard Form form of an equation of a circle (x-h)squared + (y-k) squared= r squared transverse axis the segment that is on the line containing the foci and has endpoints on the hyperbola vertices of an ellipse the endpoints of the major axis vertices of a hyperbola the endpoints of the transverse axis Foci the distance between these two points in a hyperbola is 2c Asymtotes a line the graph approaches