diketahui fungsif f(x) =3x+1 - 2x-1 tentukan daerah hasilnya jika daerah asalnya x = {1,2,3,4,5}

f(x) = 3x+1 - 2x-1
x = {1,2,3,4,5}
maka:

f(1) = 3.(1)+1 - 2.(1)-1
= 3+1 - 2-1
= 4 - 1
= 3

f(2) = 3.(2)+1 - 2.(2)-1
= 6+1 - 4-1
= 7 - 3
= 4

f(3) = 3.(3)+1 - 2.(3)-1
= 9+1 - 6-1
= 10 - 5
= 5

f(4) = 3.(4)+1 - 2.(4)-1
= 12+1 - 8-1
= 13 - 7
= 6

f(5) = 3.(5)+1 - 2.(5)-1
= 15+1 - 10-1
= 16 - 9
= 7