Here's the number line with a scale that includes the points -2, 4, and 6. The red dots indicate the positions of these points on the line.

Would you like more details or have any questions? Here are some related questions you might find interesting:

1. How would you plot fractions like $\frac{1}{2}$ or $-\frac{3}{4}$ on a number line?
2. Can you explain the concept of absolute value using a number line?
3. How would you plot negative decimal numbers on a number line?
4. What are the properties of integers as represented on a number line?
5. How do you determine the midpoint between two points on a number line?

Tip: When plotting points on a number line, it's important to ensure that the scale is consistent to accurately represent the distances between the points.