Algebra-1

Question Analysis
This question tests the student's understanding of the domain of a quadratic function, which is always all real numbers.

Key Concept Explanation
The domain of any quadratic function is the set of all possible input values (independent variable ) for which the function is defined. For all quadratic functions, the domain includes all real numbers because there are no restrictions on the value of in expressions of the form .

Step-by-step Solution
1. Identify the given quadratic function:

Click "Show Answer" to reveal the answer and analysis