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

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.

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 …

By mastering this course along with Khan Academy's SAT Math course, and regularly taking official practice tests on College Board's Bluebook app, you'll be well prepared for your SAT!

Practice Not started Level up on the above skills and collect up to 320 Mastery points Start quiz

Explore and master key 5th grade math topics like fractions, volume, and measurement as you build toward mastery with scaffolded practice and real-world problems.

High Quality Prep for every section of the digital SAT with guidance from Khan Academy’s team of math, reading, and writing experts. Free Access all of our digital SAT prep materials for free—anytime, …

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 …

This topic isn't algebra, but it is a survey of all of the most important pre-algebra skills you need to really digest algebra. These skills also tend to be pretty important in life in general!

I'm a 74-year-old retiree who got into college and got his degrees long ago, so SATs are not a matter of great personal concern to me. But I'm doing Khan Academy math courses and am wondering exactly …