Question

end point (3, -12) midpoint (2, -1) find the other endpoint

Answer 1

Do you know the mid-point formula?

Answer 2

I forgot:
WELCOME TO OPENSTUDY!! :D

Answer 3

http://openstudy.com/study#/updates/521e28f9e4b06211a67e0cda :)

Answer 4

Just find the change in the x and y values and apply them again.
-1 - (-12) = 11, a change by 11
2 - 3 = -1, a change of -1

when you apply these changes again, you wind up with ( 1 , 10 )