Question

M(2,4) is the midpoint of RS. The coordinates of S are (3,1) what are the coordinates of R

Answer 1

1, 7

just do

3, 1

2, 4

and see what you have to do to get to that mid point. you need to go down one to get to 2 from 3 and you have to go +3 to get to 4 from 1. so you need to go down 1 for x and + 3 for y

hope that made sense