If you move to -4 on the number line, you are at the position -4.

The additive inverse of -4 is +4, meaning it has the opposite sign. So, if you move 4 units in the opposite direction (to the right), you would land at:

$-4 + 4 = 0$

Thus, you would be at 0 on the number line.

Would you like further details or have any questions about this?

Here are five related questions for further exploration:

1. What is the additive inverse of a positive number, like +7?
2. How does subtraction work on a number line in relation to the additive inverse?
3. What happens if you add two numbers that are additive inverses of each other?
4. How can additive inverses help solve equations involving negative numbers?
5. Can you show an example of using the number line for combining both positive and negative numbers?

Tip: The additive inverse of any number is what brings it back to zero when added together.