Question

On a number line, the distance from zero to -9 to 9?

0+9=9
|-9|=-9
|-9|=9
9^2=81

Answer 1

Answer: it's | - 9 | = 9

Explanation:

Answer 2

It actually |-9|=9 because
0+9=9 can’t explain how it works
|-9|=-9 is not correct!
And 9^2=81 it doesn’t explain anything for number line

|-9|=9