## Section 15.4: Conic Sections

## 15.4 Outline

- Introduction
- definition
- model

- Geometric definition of conic sections
- parabola
- focus
- directrix
- axis
- vertex

- ellipse
- foci
- major axis
- center
- minor axis

- circle
- center
- radius

- hyperbola
- transverse axis
- center
- conjugate axis

- parabola
- Algebraic definition of conic sections
- general form
- first-degree equation

- general form