Algebra-1

Question Analysis
This question tests the understanding of the relationship between two variables in a given context. The student needs to identify the dependent variable based on the provided independent variable.

Key Concept Explanation
In this scenario, the independent variable (daily reading time) is what is being controlled or manipulated, and the dependent variable (vocabulary size) is what is being observed or measured as a result of changes in the independent variable.

Step-by-step Solution
1. Identify the independent variable: Daily reading ...