Evaluate the limit of an absolute value function by direct substitution

The video tutorial explains how to understand graph discontinuities, focusing on when limits do not exist due to jump discontinuities or asymptotes. It then describes the characteristics of absolute value graphs, noting their continuity and lack of discontinuities. Finally, the tutorial demonstrates calculating limits using direct substitution, emphasizing the simplicity of plugging in values to find the limit.

What are discontinuities in a graph, and how do they affect the existence of limits?

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Describe the characteristics of the absolute value graph mentioned in the text.

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How do you find the limit of a function as X approaches a certain value?

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Explain the significance of the Y coordinate when X is equal to 0 in the context of limits.

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What is direct substitution, and when is it used in finding limits?

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