Wolfram Demonstrations Project

12,000+ Open Interactive Demonstrations
Powered by Notebook Technology »

Vertical Line Test

Initializing live version
Download to Desktop

Requires a Wolfram Notebook System

Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.

This Demonstration shows the vertical line test applied to the graphs of four different types of equations. As you use the horizontal slider to control the vertical line, red points appear anywhere that the line crosses the graph of the equation. If there is more than one crossing, then the graph does not pass the vertical line test, and therefore the equation does not define as a function of .

[more]

Special attention should be paid to the tangent graph's vertical asymptotes and the fact that those are not part of the graph (which is why there are no red dots shown there).

[less]

Contributed by: Laura R. Lynch (February 2013)
Open content licensed under CC BY-NC-SA

Snapshots

Details

Embed Code

Take advantage of the Wolfram Notebook Emebedder for the recommended user experience.

Related Demonstrations More by Author
Browse all topics
Feedback (field required)
Email (field required) Name
Occupation Organization
Note: Your message & contact information may be shared with the author of any specific Demonstration for which you give feedback.
Send