Algebra 2 is the mathematics of equations and functions. It is a higher-level mathematics course that builds on the concepts learned in Algebra 1. Algebra 2 teaches students how to solve equations and how to graph functions. Algebra 2 is all about solving equations and inequalities. You will learn how to solve linear, quadratic, and absolute value equations. You will also learn how to graph linear and quadratic functions. In addition, you will learn about systems of equations and how to solve them.