menentukan domain dan reng F(x)=3x-7

domain= {1,2,3,4,5}
range:
f(1)= 3(1) - 7 = -4
f(2)= 3(2) - 7 = -1
f(3)= 3(3) - 7 = 2
f(4)= 3(4) - 7 = 5
f(5)= 3(5) - 7 = 8