Algebra-1

Question Analysis
This question assesses the student's understanding of the independent variable in a given scenario. The student must recognize which variable is being manipulated

Key Concept Explanation
In a study, the independent variable is the one that is controlled or manipulated by the researcher, while the dependent variable is the one that is measured or observed as a result of changes in the independent variable.

Step-by-step Solution
1. Identify the context: The company is testing the impact of different advertising budgets and advertising durations on product sales.
2. Identify the variable that is b...