To determine the intervals on which the graph of the function $f$ is increasing, we typically look for regions where the derivative $f'$ is positive.

Since I don't have the specific graph, I will guide you through how to analyze it:

1. Identify Critical Points: Look for points where the graph changes direction, such as local minima or maxima. These points may correspond to where the derivative is zero.

2. Test Intervals: Choose test points in the intervals defined by the critical points. Plug these points into the derivative $f'$ to check whether $f'$ is positive or negative.

3. Conclusion: The function is increasing in the intervals where $f' > 0$.

If you can provide the actual graph or more specific details about the function, I can give a more precise analysis.

Would you like to share a photo of the graph or provide additional information?

Here are some related questions to consider:

1. What specific points on the graph correspond to changes in direction?
2. Are there any inflection points visible on the graph?
3. How does the slope of the graph change in different sections?
4. What is the derivative of the function if it's known?
5. Can you describe the overall shape of the graph?

Tip: When analyzing a graph, pay attention to where the slope appears to be positive, as that indicates the function is increasing.