Which of the following expressions represent the distance between a and b on a number line?

Answer:
The expressions that represent the distance between a and b on a number line is:
A. |a-b|
B. |b-a|
Step-by-step explanation:
We know that a absolute value of a number is the magnitude of a number without regarding the sign.
We know that the distance between two numbers a and b is calculated as the absolute difference between the two numbers.
Hence, the answer is:
Option: A and Option: B