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f(x) = 1 - 3x
f(-3) = 1 - 3(-3) = 1 + 9 = 10
f(-2) = 1 - 3(-2) = 1 + 6 = 7
f(-1) = 1 - 3(-1) = 1 + 3 = 4
f(0) = 1 - 3(0) = 1 - 0 = 1
f(1) = 1 - 3(1) = 1 - 3 = -2
f(2) = 1 - 3(2) = 1 - 6 = -5
f(3) = 1 - 3(3) = 1 - 9 = -8
Maka daerah hasil adalah:
{-8, -5, -2, 1, 4, 7, 10}
f(-3) = 1 -3(-3)
= 1 +9 = 10
f(-2) = 1 -3(-2)
= 1 +6 = 7
f(-1) = 1 -3(-1)
= 1 +3 = 4
f(0) = 1 -3(0)
= 1
f(1) = 1 -3(1)
= 1 -3 = -2
f(2) = 1 -3(2)
= 1 -6 = -5
f(3) = 1 -3(3)
= 1 -9 = -8
Jadi, daerah hasil fungsinya adalah {10, 7, 4, 1, -2, -5, -8}.