pada pemetaan f:x=3x+10 diberikan domain f={-4,-3,-2,-1,0} daerah hasil f adalah

f(x) = 3x +10
f(-4) = 3(-4) +10
       = -12 +10
         = -2

f(-3) = 3(-3) +10
     = -9 +10
       = 1

f(-2) = 3(-2) +10
       = -6 +10
       = 4

f(-1) = 3(-1) +10
       = -3 +10
       = 7

f(0) = 3(0) +10
     = 10

Daerah hasil = {-2, 1, 4, 7, 10}.

F(x) = 3x +10 F (-4)= 3 (-4) + 10 = -12 + 10 = -2 F (-3)= 3 (-3) + 10= -9 + 10 = 1 F (-2)= 3 (-2) +10 = -6 + 10= 4 F (-1)= 3 (-1) +10 = -3 + 10= 7 F(0)= 3 (0)+10= 10 Jadi range atau daerah hasil adalah{-2, 1, 4, 7, 10}