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To approach this problem:

1. **Scatter Plot**: We are given a table with data points (year, attendance). We need to create a scatter plot where the x-axis represents the year and the y-axis represents attendance in millions. The years range from 1990 to 2006, and the attendance values range from 255 to 340 million.

2. **Trend Line**: A trend line needs to be drawn that best fits these points. The trend line should show the general direction (increasing or decreasing) of attendance over the years.

3. **Estimate**: Using the trend line, we will estimate the attendance in 2005.

### Data Points:
- Year: 1990, 1992, 1994, 1996, 1998, 2000, 2002, 2004, 2006
- Attendance (millions): 255, 266, 268, 290, 300, 315, 325, 328, 340

### Finding the Correct Graph:
Now, we need to determine which graph matches this trend. By inspecting the given options:

- **Options A and B** show a **decreasing trend**, which is incorrect since the data shows a general **increase in attendance** over time.
- **Options C and D** both show **increasing trends**, but **Option D** aligns more closely with the actual data points and has a steeper slope, which better reflects the growth in attendance from 255 million to 340 million.

### Conclusion:
The correct answer is **Option D** because it accurately reflects the increasing trend in attendance at theme parks over the years.

Would you like to see the detailed equation for the trend line, or do you have any further questions?

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Here are 5 questions that extend the topic:
1. How would you calculate the equation of the trend line using the data points?
2. How can the slope of the trend line help in predicting future values?
3. Why is the scatter plot important in understanding data trends?
4. What other methods can you use to estimate future attendance, apart from a trend line?
5. How does the steepness of the trend line relate to the rate of increase in attendance?

**Tip**: When drawing a trend line, it's crucial to balance the number of points above and below the line to minimize overall error (this is called the line of best fit).

The table shows the attendance in millions at theme parks over the years. Create a scatter plot of the data and draw a trend line to estimate the attendance in 2005. Choose the correct graph from the given options.

Learn how to estimate the attendance at theme parks using a scatter plot and trend line. This problem provides data from 1990 to 2006, and the goal is to estimate the attendance in 2005 based on the trend. Suitable for Grades 8-10.

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