The domain

The video tutorial introduces three key concepts related to functions: domain, codomain, and range. It explains the relationship between two sets, X and Y, where X is the domain and Y is the codomain. The range is defined as a subset of the codomain, representing the set of images in Y. The tutorial emphasizes understanding these foundational concepts to grasp the nature of functions.

Explain the relationship between the domain, codomain, and range of a function.

How is the range of a function defined in relation to the codomain?