What is the distance between D and A using a number line?
D = 1, A = -5
a) -6
b) 4
c) 6
d) -4

??

Question

What is the distance between D and A using a number line?
D = 1, A = -5 
a) -6 
b) 4 
c) 6 
d) -4

??

radar · Answer

1-(-5)=6

anonymous · Answer

thats the distance . . . . ?

shadowfiend · Answer

Correct. If you look at a number line:

| --- -5 --- -4 --- -3 --- -2 --- -1 --- 0 --- 1 --- 2 |

The question is, how many segments do you have to cross to get from 1 to -5. Now, you'll have to check your book as to what they consider `distance'. Arguably here it is -6 rather than 6, because you have to go BACK 6 to get from 1 to -5.

anonymous · Answer

Im doing summer classes . so i dont have a book resource .  so my answer is neggative 6 . . ?

shadowfiend · Answer

That seems like the safest path.

radar · Answer

The sign is tricky.  The problem doesn't say like the distance from A to D or D to A  it just says between A and D.  Some scholars  consider distance as positive and a directed distance as having sign to indicate  direction.  It is unfortunate that they have both a 6 and a -6 as a choice.  I personally don't know what the problem desires for an answer.

anonymous · Answer

im guessing they are asking for the distance formula to be used . . i just cant remember how to do so . and this is an online course and i have to to pass this test inorder to pass my course.