Answer:
The coordinates are L(9,4)
Step-by-step explanation:
The midpoint is the mean between both endpoints.
In this question:
Endpoints (9,10) and (x,y)
Midpoint (9,7).
Finding x:
9 = (9+x)/2
9 + x = 18
x = 18 - 9
x = 9
Finding y:
7=(10+y)/2
10 + y = 14
y = 14 - 10
y = 4
The coordinates are L(9,4)
