Answer:
1.5 and -1.5
Step-by-step explanation:
The coordinate of A is 0. It is given that AR = 3. AR represents the distance from point A to point R. Remember that distance is always positive. So, from here we have two possibilities.
- Point R is on Right side of A i.e. at coordinate 3
- Point R is on Left side of A i.e. at coordinate -3
In both of these cases AR which is the distance from A to R will be 3.
So, if R is on Right side of A, the midpoint of AR would be:
[tex]\frac{0+3}{2}=\frac{3}{2}=1.5[/tex]
Or if R is on Left side of A, the midpoint of AR would be:
[tex]\frac{0+(-3)}{2}=\frac{0-3}{2}=-\frac{3}{2}=-1.5[/tex]
Thus, the possible coordinates of the midpoint of AR are 1.5 and -1.5
