Finding the domain and range of a graph is essential in understanding functions. Here are the simple steps:
- Identify the Domain: Look at the x-values (horizontal axis). Determine the leftmost and rightmost points on the graph. All x-values between these points are included in the domain.
Reference - Determine the Range: Focus on the y-values (vertical axis). Find the lowest and highest points on the graph. All y-values between these points are included in the range.
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Using these steps will make determining the domain and range straightforward. Practice with various graphs for better understanding.