jawab ya pakai jalan oke

daerah asal = { 1, 2, 3, 4, 5}
f(x) = x + 3
f(1) = 1 + 3 = 4
f(2) = 2 + 3 = 5
f(3) = 3 + 3 = 6
f(4) = 4 + 3 = 7
f(5) = 5 + 3 = 8
maka daerah hasilnya = {4, 5, 6, 7, 8}