Precalculus: Relations and Functions
Johns Hopkins University · View on Coursera ↗
Taught by Joseph W. Cutrone, PhD
Math and LogicData Science
About the course
This course helps to build the foundational material to use mathematics as a tool to model, understand, and interpret the world around us. This is done through studying functions, their properties, and applications to data analysis. Concepts of precalculus provide the set of tools for the beginning student to begin their scientific career, preparing them for future science and calculus courses. This course is designed for all students, not just those interested in further mathematics courses.
The dissent
The most-upvoted critical review (5 votes, 3.0★).
“Again precalc is a little extensive, so I can fully understand, with the 4 weeks lecture one can cover only the major areas of it. As said earlier with some help from textbooks and these videos, it will a good learning experience. Looking forward to doing the next course from the specialization.”
Coursera's 4.7 comes from 231 ratings. Of those, 2.6% are 1–2★.
Starisk reads the reviews learners voted most helpful, and weights each by the square root of its votes: a review with 80 upvotes counts about five times one with 2. Unvoted reviews are not skipped out of laziness — by this model they carry no evidence that other students endorsed them.
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Reviews read on 23 Oct 2026.Read them on Coursera ↗