Question

What is the distance between - 10

and 2 on the number line?
12 units
-8 units
5 units
8 units

Answer 1

12 units

Explanation:

Draw a number line and mark x = -10 and x = 2. You can readily see that the distance from -10 to the origin is 10 units, and from the origin to 2 is 2 units, in both cases measured from left to right. Adding these two positive quantities together, we get 10 + 2, or 12.

The distance from -10 to 2 on the number line is 12 units.