P1 = Rp50.000 Qs= Rp10.000 P2 = 65000 QS = Rp16.000 ditanya fungsi penawaran

(P - 50K) / (65K - 50K) = (Q - 10K) / (16K - 10K)
(P - 50K) / 15K = (Q - 10K) / 6K
6P - 300K = 15Q - 150K
6P = 15Q + 150K
P = 2,5Q + 25000