Di tentukan f(x)=5 - 2x dengan daerah asal {-2,-1,0,1,2}. Daerah hasil fungsi tersebut adalah..... A.{0,1,3,5} B.{1,3,5,7,9} C.{1,3,7,9} D.{3,5,7,9,11}

daerah asal = {-2,-1,0,1,2}
f(x) = 5 - 2x

f(-2) = 5 - 2(-2) = 5 + 4 = 9
f(-1) = 5 - 2(-1) = 5 + 2 = 7
f(0) = 5 - 2(0) = 5 - 0 = 5
f(1) = 5 - 2(1) = 5 - 2 = 3
f(2) = 5 - 2(2) = 5 - 4 = 1

daerah hasil = {1,3,5,7,9} (B)