Algebra-1

Question Analysis
This question tests the student's understanding of the absolute value function in a real-world context, specifically in signal processing. The problem requires the student to determine the possible values of the amplitude given its absolute value.

Key Concept Explanation
The key concept here is that the absolute value of a number represents its non-negative value without regard to its sign. For any real number , if where , then or .

Step-by-step Solution
1. Identify the given absolute value:

Click "Show Answer" to reveal the answer and analysis