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MATH 155 Precalculus

Textbooks

OpenStax

College Algebra and Trig

OpenStax

Precalculus: An Investigation of Functions (Includes Trig) 2nd Ed

David Lippman, Melonie Rasmussen

Precalculus: An Investigation of Functions (Includes Trig) 1st Ed

David Lippman, Melonie Rasmussen

Precalculus / College Algebra, 3rd Edition

Carl Stitz, Jeff Zeager

Precalculus / Trigonometry 3rd Edition

Carl Stitz, Jeff Zeager

Course Templates

Here are links to three good Precalculus/College Algebra templates.

Precalculus CCC ZTC (2018)
https://www.myopenmath.com/course/course.php?cid=33857 Links to an external site.

Precalculus OpenStax Santa Ana (2017)
https://www.myopenmath.com/course/course.php?cid=20584 Links to an external site.

College Algebra OpenStax Santa Ana (2019)
https://www.myopenmath.com/course/course.php?cid=47342 Links to an external site.

If you don't have an instructor account, here's link for requesting one.
https://www.myopenmath.com/newinstructor.php Links to an external site.