Jawabanmu

2014-04-29T17:52:28+07:00
Tanda "~" misalkan transformasi P(2,-3) ~T(a,b)~ P'(2+a,b+-3) ~Cermin(y=-x)~ P'' (2b,a) dicari dengan persamaan -(2+a)= a -2+-a= a -2 = 2a -2 : 2 = a -1=a -(b+(-3)) = 2b -b + 3 = 2b 3 = 2b+b 3 = 3b 3:3 = b 1 = b jadi a+b = -1+1 =0