f(2) = ...
f(3) = ...
f(4) = ...
f(5) = ...
f(6) = ...
f(x) = 400x - 200x + 100x²
f(2) = 400(2) - 200(2) + 100(2²)
f(2) = 400(2) - 200(2) + 100(4)
f(2) = 800 - 400 + 400
f(2) = 800 + 0
f(2) = 800
f(3) = 400(3) - 200(3) + 100(3²)
f(3) = 400(3) - 200(3) + 100(9)
f(3) = 1.200 - 600 + 900
f(3) = 1.200 + 300
f(3) = 1.500
f(4) = 400(4) - 200(4) + 100(4²)
f(4) = 400(4) - 200(4) + 100(16)
f(4) = 1.600 - 800 + 1.600
f(4) = 1.600 + 800
f(4) = 2.400
f(5) = 400(5) - 200(5) + 100(5²)
f(5) = 400(5) - 200(5) + 100(25)
f(5) = 2.000 - 1.000 + 2.500
f(5) = 2.000 + 1.500
f(5) = 3.500
f(6) = 400(6) - 200(6) + 100(6²)
f(6) = 400(6) - 200(6) + 100(36)
f(6) = 2.400 - 1.200 + 3.600
f(6) = 2.400 + 2.400
f(6) = 4.800
:)
Penjelasan dengan langkah-langkah:
f(x) = 400x - 200x + 100x²
f(2) = 400(2) - 200(2) + 100(2²)
f(2) = 800 - 400 + 100(4)
f(2) = 400 + 400
f(2) = 800
f(3) = 400(3) - 200(3) + 100(3²)
f(3) = 1200 - 600 + 100(9)
f(3) = 600 + 900
f(3) = 1500
f(4) = 400(4) - 200(4) + 100(4²)
f(4) = 1600 - 800 + 100(16)
f(4) = 800 + 1600
f(4) = 2400
f(5) = 400(5) - 200(5) + 100(5²)
f(5) = 2000 - 1000 + 100(25)
f(5) = 1000 + 2500
f(5) = 3500
f(6) = 400(6) - 200(6) + 100(6²)
f(6) = 2400 - 1200 + 100(36)
f(6) = 1200 + 3600
f(6) = 4800
[answer.2.content]
