Find the codomain (set of images) of the mapping y = −2x + 8 for the domain {−2, −4, 0, 6}

University of Ilorin MTH102 2026-test past question

1. {12, 16, 8, −4}
2. {−3, −4, 6, 7}
3. {0, 3, 5, 8}
4. {6, 8, −4, 4}

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