Question

Diketahui f(x) = 3x -1 dengan daerah asal {x|-3≤x≤2,x∈B} maka daerah hasilnya adalah

Answer 1

F(x) = 3x-1
daerah asal : {-3,-2,-1,0,1,2}
f(-3) = 3(-3)-1 = -10
f(-2) = 3(-2)-1 = -7
f(-1) = 3(-1)-1 = -4
f(0) = 3(0)-1 = -1
f(1) = 3(1)-1 = 2
f(2) = 3(2)-1 = 5

maka daerah hasilnya adalah: {-10,-7,-4,-1,2,5}

Answer 2

Daerah asal = {-3,-2,-1,0,1,2}

daerah hasil = f(-3) = 3×-3 - 1 = -9 -1 = -10

f(-2) = 3×-2 -1 = -6 -1 = -7

f(-1) = 3×-1 -1 = -3 -1 = -4

f(0) = 3×-0 -1 = 0 -1 = -1

f(1) = 3×1 -1 = 3 -1 = 2

f(2) = 3×2 -1 = 6 -1 = 5

daerah hasil = {-10,-7,-4,-1,2,5}