To improve the scatter graph based on the list provided in the image, here are the relevant changes:

1. Add units to the axis labels: The axes currently lack units, which makes it unclear what the numbers represent (e.g., petrol in liters and distance in kilometers or miles).

2. Make the vertical axis go up to 400: The current vertical axis only goes up to 200, and expanding it would allow for a greater range of data to be represented if necessary.

The other suggestions from the list wouldn't be improvements in this case:

• Drawing lines between the points isn't necessary for a scatter plot.
• The horizontal axis already goes up to 80, so reducing it to 40 would remove valid data.
• Making the points different colors might not add value unless differentiating data categories.

Would you like any more details or have any specific questions?

Here are 5 questions that might expand your understanding:

1. What unit might be appropriate for the petrol axis?
2. Why might extending the vertical axis to 400 be important?
3. How would coloring points help in a more complex data set?
4. What other types of graphs could represent this data?
5. Should we consider different axis scales to reflect more accuracy?

Tip: Always ensure both axes have clear units when presenting data to avoid misinterpretation.