Parenthesis or bracket? domain and range of a graph

The video tutorial explains the concepts of domain and range in graphs, focusing on how to determine the set of X and Y values. It discusses the use of parentheses and brackets to indicate whether values are included or excluded, and addresses discontinuities such as holes in the graph. The tutorial also covers the use of union and set notation to describe domains and ranges, emphasizing the importance of understanding these concepts for accurate graph interpretation.

Describe the significance of using parentheses and brackets in the context of domain and range.

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How would you express the domain if there are two holes in the graph?

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What happens to the range if there is a discontinuity at Y = 0?

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