1/2 I’m just doing this answer because I need to finish setting up the account so it’s wrong my bad
Answer:
Price demand function
Step-by-step explanation:
The price demand function is the function in which there is a relationship between the demand and the price of the product
The Price demand function is


hence, the price demand function represents that there is a relationship that lies between the demand and the price
0.09/10=0.009
we check it: 0.009*10=0.09, so it's right