" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Laba = 5000x
sehingga, keuntungan maksimum didapatkan untuk :
f(x) = 5000x - (9000 + 1000x + 10x^2)
f(x) = -10x^2 + 4000x - 9000
f'(x) = -20x + 4000
-20x + 4000 = 0
20x = 4000
x = 4000/20
x = 200
f(x) = -10x^2 + 4000x - 9000
f(200) = -10(200)^2 + 4000(200) - 9000
= -400000 + 800000 - 9000
= Rp391.000,-