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In mathematics education, precalculus is a course, or a set of courses, that includes algebra and trigonometry at a level that is designed to prepare students for the study of calculus, thus the name …

This site contains high school Precalculus lessons on video from four experienced high school math teachers. There are also packets, practice problems, and answers provided on the site.

Explore the fundamentals of precalculus with OpenStax's comprehensive, free educational resource designed for high school and college students.

Learn Precalculus skills for free! Choose from hundreds of topics including functions, complex numbers, vectors, matrices, and more. Start learning now!

Master precalculus with clear explanations, step-by-step solutions, and free guided notes at Understand the Math. This page covers functions, polynomial and rational expressions, exponential and …

It is a text which students can learn from in its simplicity, clarity, and logic, and conversational tone, while maintaining mathematical correctness and completeness. An important element of consistency is …

Free, interactive video lessons on precalculus!

What is Precalculus? Precalculus courses act as a prerequisite for calculus and cover advanced mathematical concepts based on quantitative reasoning and functions. Schools usually divide …

Help in precalculus. What is a function? How to find the roots of polynomials. How to sketch the graphs of polynomials. The graph of a rational function. What is an asymptote? How to solve a quadratic …