Prerequisite: Completion of Algebra I; It is recommended that students scored Proficient or Advanced on the Keystone Algebra Exam. This is the second course in the Algebra sequence. Topics introduced in Algebra 1 are expanded and new algebraic concepts will be introduced. These include: Number Systems, Non-Linear Expressions and Equations, Patterns, Relations, Functions, Application of Functions, and Data Analysis. In addition, several new topics (rational expressions, polynomial functions, complex numbers, logarithmic functions, exponential functions and counting principles) will be studied.