Hello, there!
I think you mean the absolute value of -1.1
This would be 1.1 as absolute value is how many units away from 0 a number is.
Even if you were asking the absolute value of 1.1, the answer would be still be 1.1
Absolute value is always positive, regardless of the number.
I hope I helped!
Let me know if you need anything else!
~ Zoe