High School Precalculus: Help and Review
 Course type: Selfpaced
 Available Lessons: 297
 Average Lesson Length: 8 min
 New lessons are still being added

Watch a preview:
chapter 1 / lesson 1What is a Linear Equation?
Course Summary
If you need help with high school precalculus, the engaging video lessons and quizzes in this course can help. Review all the math formulas and concepts through these chapters, which are accessible to you 24 hours a day on any mobile device, to get a better grade in your precalc class.to start this course today
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32 chapters in High School Precalculus: Help and Review
Course Practice Test
Check your knowledge of this course with a 50question practice test. Comprehensive test covering all topics
 Detailed video explanations for wrong answers
Who's it for?
Anyone who needs help learning or mastering high school precalculus material will benefit from taking this course. There is no faster or easier way to learn high school precalculus. Among those who would benefit are:
 Students who have fallen behind in understanding linear equations, function operations, trigonometric identities, piecewise functions, conic sections, quadratic equations or any other high school precalculus topic
 Students who struggle with learning disabilities or learning differences, including autism and ADHD
 Students who prefer multiple ways of learning math (visual or auditory)
 Students who have missed class time and need to catch up
 Students who need an efficient way to learn about high school precalculus
 Students who struggle to understand their teachers
 Students who attend schools without extra math learning resources
How it works:
 Find videos in our course that cover what you need to learn or review.
 Press play and watch the video lesson.
 Refer to the video transcripts to reinforce your learning.
 Confirm your understanding through lesson quizzes and chapter exams.
Why it works:
 Study Efficiently: Skip what you know, review what you don't.
 Retain What You Learn: Engaging animations and reallife examples make topics easy to grasp.
 Be Ready on Test Day: Use the High School Precalculus final exam to be prepared.
 Get Extra Support: Ask our subjectmatter experts any high school precalculus question. They're here to help!
 Study With Flexibility: Watch videos on any webready device.
Course Topics
In this chapter, you'll learn the answers to questions including:
 How do I graph linear equations?
 What are complex numbers and inequalities?
 How do I solve quadratic equations?
 What is the rate of change?
 How do I work with higherdegree polynomials?
 How do I solve trigonometric equations?
 What are the laws of sines and cosines?
 What are limits in precalculus?
 How do I calculate difference quotients in precalculus?
Earning College Credit
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To learn more, visit our Earning Credit Page
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 Answers and detailed explanations to each question
 Video lessons to explain complicated concepts