This document provides an overview of algebra, trigonometry, and analytic geometry. It defines key concepts like functions, coordinate systems, Venn diagrams, and trigonometric functions. Functions are introduced as relations where each element of the domain corresponds to one and only one element in the range. Coordinate systems like the Cartesian plane are explained. Trigonometric functions like sine, cosine, and tangent are defined based on right triangles and the unit circle. Their domains and ranges are described along with periodic properties. Examples of trigonometric and other function types are also given.