Algebra-1

Question Analysis
The question requires students to determine the domain of the function by analyzing the graph and understanding the constraints on the input values.

Key Concept Explanation
The domain of a function is the set of all possible input values (independent variable, usually ) for which the function is defined. 

Step-by-step Solution
1. Identify the constraint: The expression inside the square root, , must be non-negative.
2. Set up the inequality:

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