daerah asal g(x)=2x+1 jika daerah hasil nya {1,3,5,9,11} adalah

Daerah Hasil : { 1,3,5,9,11 }

misalkan x1, x2,x3,x4,x5 domain dari g (x)

maka,

g (x1) = 2x1 + 1 = 1
2x1 = 1 - 1 = 0
x1 = 0/2 = 0

g (x2) = 2x2 + 1 = 3
2x2 = 3 - 1 = 2
x2 = 2/2 = 1

g (x3) = 2x3 + 1 = 5
2x3 = 5-1 = 4
x3 = 4/2 = 2

g (x4) = 2x4 + 1 = 9
2x4 = 9 - 1 = 8
x4 = 8/2 = 4

g (x5) = 2x5 + 1 = 11
2x5 = 11 - 1 = 10
x5 = 10/2 = 5

maka, Daerah asal : { 0, 1, 2, 4, 5 }

semoga paham dan jangan lupa minum air putih.