Jawabanmu

2014-03-19T18:42:28+07:00
G (3,2) sumbu x = 2 =(2x2-3,5)= 1,5
H (4,0)      "        = 2 =(2x2-4,0)= 4,0
I (-2,1)      "         = 2 =(2x2-(-2),1= 8,1
J (-1,-1)    "         = 2 =(2x2-(-1),-1= 5,-1