Here's the number line with a scale that includes the points -4, -2, and 6. The points are marked in red.

Would you like more details on this or have any other questions? Here are some related questions you might find useful:

1. How do you determine the appropriate scale for a number line?
2. What are the key components of a number line?
3. How can number lines be used to understand negative and positive numbers better?
4. What are other methods to visualize integers besides number lines?
5. How can number lines be extended to represent fractions or decimals?

Tip: When plotting points on a number line, always ensure that the scale covers the full range of the values you need to display.