This math video tutorial explains what a function is. It is a special relation where there is exactly one output for every input. This video explains how to evaluate a function and how to determine if a graph represents a function using the vertical line test.

Functions and Graphs:
https://www.youtube.com/watch?v=miTyZbwWCVU

Composite Functions:
https://www.youtube.com/watch?v=ZFPkQkURSxk

Evaluating Functions:
https://www.youtube.com/watch?v=HyNie_PYgsY

My Website: https://www.video-tutor.net
Patreon Donations: https://www.patreon.com/MathScienceTutor
Amazon Store: https://www.amazon.com/shop/th....eorganicchemistrytut

Subscribe:
https://www.youtube.com/channe....l/UCEWpbFLzoYGPfuWUM

Disclaimer: Some of the links associated with this video may generate affiliate commissions on my behalf. As an amazon associate, I earn from qualifying purchases that you may make through such affiliate links.