To find the domain of a set of points, we look at the **x-values** of the points, since the domain is the set of all possible input values (x-values) of a function.

Given the points:  
(2, 8), (3, 8), (4, 11)

The domain is the set of x-values:
\[ \{2, 3, 4\} \]

Let me know if you have any questions or need more details.

Here are 5 related questions:
1. What is the range of the set of points (2, 8), (3, 8), (4, 11)?
2. How do you determine the range of a function from a graph?
3. Can a domain have repeated x-values in a function?
4. What is the domain of a quadratic function like \( f(x) = x^2 + 2x - 3 \)?
5. How do you find the domain of a rational function?

**Tip:** The domain of a set of points is always found by collecting the x-values, while the range is determined by collecting the y-values.

Learn how to find the domain of a set of points (2, 8), (3, 8), (4, 11) by identifying the x-values. This problem helps students understand core concepts in coordinate geometry and functions, suitable for Grades 6-8.

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