Nama: Yuda Firdanny PrakasaNIM : 0413112331861. Sebuah kurva permintaan melewati titik A (100 ; 400) B (80 ; 600)

a) Berapah rupiah nilai TR max ?b) Hitunglah MR pada tingkat harga Rp 500,00 !c) Hitunglah besar TR pada waktu MR = -20 !Solution:PQTRMR

40010040.000xxx

6008048.000400

a) b = = = 10

P = a bQ 400 = a 10(100) 400 = a 1000 a = 1400 P = a-bQ P = 1400-10(70) P = 700

TR max : Q = = = 70

b) P = a bQ500 = 1400 10Q Q = Q = 90

MR = a 2bQ MR = 1400 2.10(900)MR = 1400 1800 MR = -400

c) MR = a 2bQ-20 = 1400 20Q Q = Q = 71

P = a bQ P = 1400 10(71) P = 690

TR = P.Q = 690.71 = 48990