Which expressions represent the distance between the two points?

Choose all answers that are correct.
http://static.k12.com/calms_media/media/1474500_1475000/1474523/3/63a2f6ce9e7dc52c936f30f2dba06a6476d3c0b9/MS_IMB-140402-1002601.jpg
The number line shows two points with coordinates negative 11 and positive 7.

A.
|–11 – 7|

B.
|–11 + 7|

C.
|7 – (–11)|

D.
–11 – 7

Question

Which expressions represent the distance between the two points?
 
Choose all answers that are correct.
 http://static.k12.com/calms_media/media/1474500_1475000/1474523/3/63a2f6ce9e7dc52c936f30f2dba06a6476d3c0b9/MS_IMB-140402-1002601.jpg
   The number line shows two points with coordinates negative 11 and positive 7.   
 
 A.
|–11 – 7|
 
 B.
|–11 + 7|
 
 C.
|7 – (–11)|
 
 D.
–11 – 7

anonymous · Answer

number line in url

anonymous · Answer

Option A and C are correct.
Note that Option D is NOT correct as distance is always positive.

anonymous · Answer

thank you

starlord1 · Answer

actually it is A. and C. because the minuses will cancel each other out and end up positive both ways and the total distance will be 18