Respuesta :
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
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