Question

The midpoint of CD is E(–1, 0). One endpoint is C(5, 2). What are the coordinates of the other endpoint?

Answer 1

x+5 / 2 = -1

Answer 2

you can draw a line to better see the distances involved

Answer 3

2+dy = 0 ; 0+dy = Y

5+dx = -1; -1+dx=X