Contoh soal permintaan

P	Q
2	30
4	26
6	22
8	20
10	16

Qdx = a-bp                                          

30 = a-2p                                              

26 = a-4p                                             

4   = 2b                                                 

b   = 4/2 = 2                                         

Qdx = a-bp        
30 = a-2.(2)      

30 = a-4
a = 30+4
a = 34
Q= 34-2p
p = 0          Q = 34