9514 1404 393
Answer:
X(2, -8)
Step-by-step explanation:
The midpoint relation is ...
M = (X +Y)/2
Solving for X, we find ...
X = 2M -Y
X = 2(-3, -1) -(-8, 6) = (-6+8, -2-6) = (2, -8)
The coordinates of X are (2, -8).