How to find endpoints ? ***10 points :)?

Question

i need help on my geometry HW.

here's the questionn:

use the given endpoint R & the midpoint M of RS to find the coordinate of the other endpoints.

R(6,0) and M(0,2)

how do i do thisss ?

kthanks ! :)

Answer 1

R is one end, M is the midpoint.  So to find S, you double the movement of the line.

Rx to Mx was 6 to 0.  So, continuing that trend, Sx must be -6.

Ry to My was 0 to 2.  So, continuing that trend, Sy must be 4.

S = (-6,4)