Question

The midpoint of line MN is P(5,5). One of the end points in M(-4,2). Find the coordinate of endpoint N.

Answer 1

-4 + x                        2 + y
-------  =  5  and         ------  = 5
   2                               2

so x = 10 + 4 = 14  and y = 10 - 2 = 8

endpoint N = (14,8)