On a number​ line, suppose the coordinate of A is​ 0, and AR equals4. What are the possible coordinates of the midpoint of AR overbar​?

Question

i need the coordinate for AR overbar

Answer 1

The midpoint is either at 2 or -2. The distance from A to R is 4, and half of 4 is 2. On a one-dimensional number line, if you move 2 units from 0, you must either go 2 units in the positive direction, or 2 units in the negative direction.