What is the definition of range of a relation

The video tutorial explains the concepts of domain and range in mathematics, relating domain to input values and range to output values, often referred to as Y coordinates. It uses ordered pairs to illustrate the relationship between input and output. The tutorial further explores how these concepts apply to graphs, particularly piecewise graphs, and explains how to determine the range of Y values, which can extend to infinity. The explanation aims to clarify these fundamental concepts for students.

Explain how to determine the range from a piecewise graph.

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What does it mean when we say the range includes values from 3 to infinity and from 1 to negative infinity?

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