To solve this problem, we analyze the scatter plot to find the value of $x$ when $y = 9$. Observing the plot:

1. Locate $y = 9$ on the vertical axis.
2. Trace horizontally to find the corresponding $x$-value where the data point aligns.
3. From the plot, when $y = 9$, the corresponding $x$-value appears to be approximately $x = 3.5$.

Correct Answer: 3.5

Would you like further clarification or an explanation of scatter plots?

Here are 5 related questions for additional practice:

1. How would you find $x$ if $y = 7$ on the same scatter plot?
2. What does a scatter plot represent in terms of data trends?
3. How can you determine if there is a correlation between $x$ and $y$?
4. What is the importance of interpolation when analyzing scatter plots?
5. Can you predict the trend for $y$ as $x$ approaches 10?

Tip: Always check for a pattern or trend in the scatter plot to confirm consistency when predicting values!