Points ,
,
, and
represent −3, −1, 0, and 2, respectively, on a number line. How many units is the midpoint of
from the midpoint of
?
- A1
- B2
- C3
- D4
Show the answer
Correct answer: C
Find the midpoint of and
:
Midpoint of
The midpoint of is located 1 unit from each endpoint, so the midpoint is at −2.
Midpoint of
The midpoint of RS is located 1 unit from each endpoint, so the midpoint is at 1. The distance between the two midpoints is 1 −(−2) = 3 units.