Algebra-1

Question Analysis
This question tests the understanding of the domain of a piecewise function, which is the union of the domains of its individual pieces.

Key Concept Explanation
The domain of a piecewise function is the set of all possible input values (x-values) for which the function is defined. For the given piecewise function, the first piece is defined for and the second piece is defined for . Therefore, the domain is all real numbers.

Step-by-step Solution
1. Identify the domain of the first piece:
2. Identify the domain of the second piece:

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