The document outlines the various types of conic sections, including circles, ellipses, parabolas, and hyperbolas. It defines important terms related to these sections, such as center, vertex, focus, directrix, linear eccentricity, focal parameter, locus, and axis of symmetry. Each term is briefly explained in relation to the properties and measurements of conic sections.

3. Types of Conic
Sections:
 Circle
 Ellipse
 Parabola
 Hyperbola

5. Center
 It is the point (h, k) at the
center of a circle, or an ellipse,
or an hyperbola

6. Vertex
 For Parabola, it is the point at
the end of the parabola
 For Hyperbola, it is the turning
point of a branch of a
hyperbola

7. Focus
 It is the point from which
distances are measured in
forming a conic
 A place where the distance-
lines converges

8. Directrix
 It is the line from which
distances are measured in
forming a conic

9. Linear Eccentricity
 It is the distance between the
center and the focus (or one
of the two foci)

10. Focal Parameter
 It is the distance between the
focus (or one of the foci) and
the directrix

11. Locus
 A set of points satisfying some
condition or set of conditions

12. Axis of Symmetry
 A line perpendicular to the
directrix passing through the
vertex of a parabola