The basis of algebra.

Linear equations are a type of equation that involves a variable. They appear everywhere in math and our world.

Learn how to solve equations for a variable - the most useful part of algebra.

Learn what a function is and how to graph one.

A polynomial is the huge umbrella of functions. Although being a simple concept, they have been commonplace in math and other fields for hundreds of years, and have been extensively studied.

Complex Numbers are the composed of real and imaginary components - another dimension of numbers.

A type of polynomial with degree 2 - they form parabolas, which have many interesting properties and uses.

Systems of Equations can model systems that have multiple unknown numbers. Learn what they are and how to solve them.