4

To match each graph with its corresponding equation, observe the slope and y-intercept of each line:

1. Graph 1: The line passes through the origin and has a positive slope. It matches \( y = 2x \).

2. Graph 2: The line has a negative slope and passes through the origin. It matches \( y = -2x \).

3. Graph 3: The line also passes through the origin and has a negative slope less steep than Graph 2. It matches \( y = -\frac{1}{2}x \).