Find the distance between a and b a= 1, b= -2.5?

Question

Find the distance between a and b a= 1, b= -2.5?

Answer 1

I don't think this question belongs in the Space section. Try Mathematics.

P.S.: The distance is 3.5

Answer 2

All you need to do is add the absolute values, 1 and 2.5.

Answer 3

3.5 But this is in the wrong section.

Answer 4

This is very simple math (not sure why its in Astronomy & Space).

Pick a spot on the floor.

Put one ball 1 meter to the right of that spot.

Put a second ball 2.5 meters to the left of that spot.

Measure the distance between the 2 balls (its 3.5 meters).

See, simple math.

Answer 5

a n b = 1n-2.5

Answer 6

3.5