Penjelasan dengan langkah-langkah:

y = 8-2x

f(x) = 8-2x

f(-2) = 8-2(-2) = 8+4 = 12 → (-2,12)

f(-1) = 8-2(-1) = 8+2 = 10 → (-1,10)

f(0) = 8-2(0) = 8+0 = 8 → (0,8)

f(1) = 8-2(1) = 8-2 = 6 → (1,6)

f(2) = 8-2(2) = 8-4 = 4 → (2,4)