Question

Diketahui f(x)=2x+5 dengan f:A->R, A ={0,1,2,3,4} tentukan daerah asal dan daerah hasilnya

Answer 1

Daerah asal/domain = {0,1,2,3,4}

f(x) = 2x + 5
x = 0 --> f(0) = 2(0) + 5 = 5
x = 1 --> f(1) = 2(1) + 5 = 7
x = 2 --> f(2) = 2(2) + 5 = 9
x = 3 --> f(3) = 2(3) + 5 = 11
x = 4 --> f(4) = 2(4) + 5 = 13

Daerah hasil/Range = {5,7,9,11,13}