https://file.aiquickdraw.com/mathbot/file/1728329659199k7fi1tav.jpg

To determine at what age the average mass of the puppy is 4 kg, we can refer to the provided graph.

From the graph:
- The x-axis represents the age in weeks.
- The y-axis represents the average mass in kilograms (kg).

Looking at the graph, when the mass is 4 kg, we trace it horizontally to meet the line and then go down vertically to the age axis (x-axis). 

From this, we can see that the mass of 4 kg occurs at **8 weeks** of age.

Would you like more details on how to interpret such graphs or do you have any further questions?

Here are 5 related questions:
1. How do we calculate the slope of a line in a graph like this?
2. Can we use a mathematical equation to represent this relationship between age and mass?
3. If the mass continues to increase linearly, what will the mass be at 20 weeks?
4. How can we estimate the mass at 5 weeks using interpolation from the graph?
5. What is the importance of understanding growth trends in real-life applications, such as animal breeding?

**Tip**: When interpreting graphs, always make sure to label key points (like where the line crosses a specific value) to make data extraction easier.

At what age is the average mass of a puppy of this breed 4 kg?

Find out at what age the average mass of a puppy of a particular breed reaches 4 kg by interpreting a linear graph. The solution is suitable for students in Grades 6-8, teaching graph interpretation and basic linear relationships.

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