Which number is farther from 0 on a number line -9 or 6 explain?

On a number line, -9 is farther from 0 than 6. This is because the distance from 0 to -9 is 9 units, while the distance from 0 to 6 is only 6 units. Therefore, -9 has a greater absolute value than 6, making it farther from 0.