Interactive Demo
Rational Function Explorer: Holes vs Asymptotes
Rational Function Explorer: Holes vs Asymptotes is a free, interactive learning demo from the Precalculus course on Lykke. It helps you build intuition for Vertical and horizontal asymptotes, Removable discontinuities (holes), End behavior, Rational expression arithmetic. Play with it directly in your browser — it features 5 sliders and a live visual canvas. This demo lives in the “Rational Functions” section of the course.

How to use this demo
- Drag the “Numerator Root a 1”, “Numerator Root b -2”, “Denominator Root c 2” sliders to change the inputs and watch the result update live.
- Experiment freely — there's nothing to break, and every change is reversible.
What you'll explore
- Vertical and horizontal asymptotes
- Removable discontinuities (holes)
- End behavior
- Rational expression arithmetic
Frequently asked questions
What does the Rational Function Explorer: Holes vs Asymptotes demo do?
Rational Function Explorer: Holes vs Asymptotes Adjust sliders to change the roots of the numerator and denominator. Rational Function Explorer: Holes vs Asymptotes lets you explore this hands-on instead of only reading about it.
What Precalculus concept does Rational Function Explorer: Holes vs Asymptotes teach?
Analysis of functions defined as quotients of polynomials, focusing on their graphical behavior and discontinuities. It focuses on Vertical and horizontal asymptotes, Removable discontinuities (holes), End behavior, Rational expression arithmetic from the “Rational Functions” section.
What can I control in Rational Function Explorer: Holes vs Asymptotes?
The “Numerator Root a 1”, “Numerator Root b -2”, “Denominator Root c 2” sliders change the key inputs. Every change updates the visualization in real time, so you can see exactly how each variable affects the outcome.
How does Rational Function Explorer: Holes vs Asymptotes fit into the Precalculus course?
The Client Challenge Precalculus course is a comprehensive curriculum designed to bridge the gap between high school algebra and college-level calculus. It covers ten core units ranging from composite functions and trig… This demo is the interactive piece for the “Rational Functions” section. Open the full Precalculus course wiki at https://www.getlykke.com/explore/public/precalculus-760426f2-c765-4f63-848e-73deae621c37 for notes, flashcards, quizzes and the other demos.
What will I understand better after using Rational Function Explorer: Holes vs Asymptotes?
You'll build intuition for Vertical and horizontal asymptotes, Removable discontinuities (holes), End behavior, Rational expression arithmetic — and, crucially, see how they behave when you change the inputs, which is hard to get from a textbook or lecture on Precalculus alone.
From the Precalculus course
This interactive demo is part of the Rational Functions section. Explore the full Precalculus course wiki on Lykke — with notes, flashcards, quizzes and more interactive demos.
Open the Precalculus course →