**Category:** Calculus  
**Subtype:** Derivatives and Monotonicity  
**Problem Description:** Determine the interval where the function \(y = f(x)\) is increasing based on the sign of its derivative \(f'(x)\).  

**Summary:** You need to find out in which of the given intervals the function is increasing, based on the provided table that shows where the derivative \(f'(x)\) is positive.