Fungsi f : x —> 4x – 2, untuk x = { -1, 0, 1, 2, 3 }. Daerah hasil fungsi f adalah

f(x) = 4x –2

Domain = {–1,0,1,2,3}

f(–1) = 4(–1) –2

=> –4 –2

=> –6

f(0) = 4(0) –2

=> 0 –2

=> –2

f(1) = 4(1) –2

=> 4 –2

=> 2

f(2) = 4(2) –2

=> 8 –2

=> 6

f(3) = 4(3) –2

=> 12 –2

=> 10

Jadi rangenya(daerah hasil) = {–6,–2,2,6,10}

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