College Algebra 14 units · 105 skills Unit 1 Linear equations and inequalities Unit 2 Graphs and forms of linear equations Unit 3 Functions

A function is like a machine that takes an input and gives an output. Let's explore how we can graph, analyze, and create different types of functions.

Algebra (all content) 20 units · 412 skills Unit 1 Introduction to algebra Unit 2 Solving basic equations & inequalities (one variable, linear) Unit 3 Linear equations, functions, & graphs

The Algebra 1 course, often taught in the 9th grade, covers Linear equations, inequalities, functions, and graphs; Systems of equations and inequalities; Extension of the concept of a function; Exponential …

Linear equations and inequalities are the foundation of many advanced math topics, such as functions, systems, matrices, and calculus. Learn how to master them and unlock new possibilities for your …

Want to know the path a soccer ball will take through the air? We need quadratic equations. Some equation-solving strategies, like taking the square root or factoring, work best with friendly numbers. …

Explore complex numbers in College Algebra with Khan Academy's free lessons and practice to enhance your understanding of mathematics.

Once we know a handful of parent functions, we can transform those functions to build related functions. Geometry swoops in as we translate, reflect, and dilate the graphs, working back and forth between …

Created by experts, Khan Academy’s library of trusted, standards-aligned practice and lessons covers math K-12 through early college, grammar, science, history, AP®, SAT®, and more.

Did you know that square and cube roots are a kind of exponent? They're just so common, they get a special symbol. Now, we'll be able to use the exponent properties to simplify expressions whether …