The midpoint is (10,9.5) The one endpoint is (8,3) All you have to do for this question is find out what you need to add to each coordinate to equal double the midpoint For example In this question the x coordinate is 10 so double 10 is 20 Then you do 20-8 which is 12 That is the x coordinate The y coordinate is 9.5 so double that is 19 19-3=16 so the y coordinate is 16 The final answer is (12,16)