Question

Use absolute value to express the distance between −12 and −15 on the number line.

|−12 − (−15)| = −27
|−12 − (−15)| = −3
|−12 − (−15)| = 3
|−12 − (−15)| = 27

Answer 1

To start, Do you know what absolute value is?

Answer 2

first calculate
if x is negative in |x|,then |x|=-x
if x is zero or positive,then |x|=x
-12-(-15)=-12+15=3
|3|=?