a) The two numbers that are eight units from 0 on the number line:

• The two numbers eight units away from 0 are found by adding and subtracting 8 from 0. So: $0 + 8 = 8 \quad \text{and} \quad 0 - 8 = -8$
• Thus, the two numbers are 8 and -8.

b) The two numbers that are six units from 2 on the number line:

• Similarly, the two numbers six units away from 2 are found by adding and subtracting 6 from 2. So: $2 + 6 = 8 \quad \text{and} \quad 2 - 6 = -4$
• Therefore, the two numbers are 8 and -4.

Would you like more details or have any questions?

Here are 5 related questions:

1. What numbers are 10 units away from -3?
2. How do you find the midpoint between two numbers on a number line?
3. What is the distance between -5 and 7 on a number line?
4. How do you represent the absolute value of a number on a number line?
5. What numbers are 12 units from 5?

Tip: The distance between two numbers on a number line is the absolute value of their difference.