Fungsi penawarannya: Ps = 5Q + 4000
Pembahasan
Fungsi penawaran
P – P1 : P2 – P1 = Q – Q1 : Q2 – Q1
P – Rp5000 : Rp6000 – Rp5000 = Q – 200 : 400 – 200
P – Rp5000 : 1000 = Q – 200 : 200
200P – Rp1000.000 = 1000Q – 200.000
200P = 1000Q – 200.000 + 1000.000
200P = 1000Q + 800.000
P = 5Q + 4000