Answer :
Answer:
( -15, -16 )
Step-by-step explanation:
Plug in the given endpoint into the midpoint formula setting each equation equal to the corresponding midpoint.
[tex]\frac{-5+x}{2}=-10\\-5+x=-20\\x=-15\\\\\frac{4+y}{2}=-6\\4+y=-12\\y=-16[/tex]