Answer:
The coordinates of Z is (-8,12)
Step-by-step explanation:
You multiply -3 by 2 to get -6 then multiply 10 by 2 to get 20
then you create the equations you subtract 2 by -6 and you get -8 (x coordinate) and you subtract 8 by 20 to get 12 (y coordinate)
To check your answer you use the Midpoint formula
and you get your midpoint.
5:3
Answer
2x
-14=20y-7x,10y+4=2x i think
is in expanded form
hope it helps