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 a piecewise function, it is the union of the domains of its individual pieces.

Step-by-step Solution
1. Identify the domain of each piece of the function.
2. The first piece is defined for .
3. The second piece