## The Primitives of Precalculus

by Robert Curtis

# What is a Function? - When is a Data Set NOT a Function?

- P2: Functions:
- P2.1: What is a Function?:
- P2.1.d: When is a Data Set NOT a Function?:
- P2.1.d.1: ChalkTalk Help Movie

Curriculum Home with Demo Access

## Distance Calculus - Student Reviews

*Date Posted: May 3, 2018*

Review by: James Holland

Courses Completed: Calculus I, Calculus II

Review: I needed to finish the Business Calculus course very very very fast before my MBA degree at Wharton started. With the AWESOME help of Diane, I finished the course in about 3 weeks, allowing me to start Wharton on time. Thanks Diane!

Transferred Credits to: Wharton School of Business, University of Pennsylvania

*Date Posted: Jan 12, 2020*

Review by: Anonymous

Courses Completed: Calculus I

Review: This course is amazing! I took it as a requirement for admission to an MBA program, and couldn't have been happier with the quality and rigor of the course. I previously took calculus two times (at a public high school and then a large public university commonly cited as a "public ivy"), this course was by far the best and *finally* made the concepts click. Previously I had no idea what was going on because terrible PhD students were teaching the course and saying stuff like "a derivative is the slope of a tangent line" - ??? but what does that mean ???, but the instructors in the Shorter University course explain everything in ways where it FINALLY made sense (e.g., "imagine a roller coaster hitting the top of a hill, there's a moment where it shifts momentum and you're not accelerating or decelerating, that's what a 0 rate of change is - that's when the derivative would be zero"). They explain everything in multiple ways and relate it to other concepts. It all made perfect sense when I finally had a good instructor. Really recommend this class

Transferred Credits to: The Wharton School, UPenn

*Date Posted: Feb 28, 2020*

Review by: Teddy M.

Courses Completed: Precalculus, Calculus I

Review: Pros: once you get going, you can go really fast. The visual textbook is pretty cool. The instructors were very responsive. Cons: the movies are great, but the software crashes more than it should. Sometimes it is just a hassle doing things in the software instead of on paper, but once I got used to the software, it was ok.

Transferred Credits to: Texas Christian University