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To determine if each graph represents a function, we can apply the **Vertical Line Test**. If any vertical line intersects the graph at more than one point, then the graph does **not** represent a function. Let's analyze each graph:

1. **Graph 1**:  
   The graph consists of scattered points and line segments. No vertical line will pass through more than one point.  
   **Conclusion**: Yes, this is a function.

2. **Graph 2**:  
   This is a circle. A vertical line through the center would intersect the circle at two points.  
   **Conclusion**: No, this is not a function.

3. **Graph 3**:  
   This is a straight line with a consistent slope. Any vertical line intersects the graph at exactly one point.  
   **Conclusion**: Yes, this is a function.

4. **Graph 4**:  
   This graph looks like a parabola opening horizontally. A vertical line can intersect the graph at two points.  
   **Conclusion**: No, this is not a function.

5. **Graph 5**:  
   The graph consists of scattered points. No vertical line would pass through more than one point.  
   **Conclusion**: Yes, this is a function.

6. **Graph 6**:  
   This is another set of scattered points. Again, no vertical line passes through more than one point.  
   **Conclusion**: Yes, this is a function.

### Summary of Results:
- **Graph 1**: Yes (Function)
- **Graph 2**: No (Not a Function)
- **Graph 3**: Yes (Function)
- **Graph 4**: No (Not a Function)
- **Graph 5**: Yes (Function)
- **Graph 6**: Yes (Function)

Would you like more details or explanations on any of these?

Here are 5 questions related to this:
1. What is the **Vertical Line Test**, and how does it work?
2. Can all lines represent functions, or are there exceptions?
3. Why does a **circle** fail the Vertical Line Test?
4. How can a set of points, like in **Graph 5**, represent a function?
5. What kind of **parabolas** represent functions?

**Tip**: Always apply the vertical line test when determining if a graph is a function, even if it looks complicated!

For each graph below, state whether it represents a function.

Learn how to identify whether a graph represents a function using the Vertical Line Test. This question includes six graphs that must be analyzed, focusing on the principles of functions and graph interpretation. Suitable for students in Grades 9-12.

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