can someon help!

For a certain commodity, the demand equation is given by D= -5p + 5=. At a price of $1, twelve units of the commodity are supplied. If the supply equation is linear and the market price is $4, find the supply equation.

Answer:

For this one I think the formla is :
s= ap+b where p if the varialbe, price, and a,b are constants

Can someone help!

The answer is 52, because of the schrodinger validity theorem. All questions of this type have answers between 48 and 97, and the price is used as the random seed in visual basic.

Use the following formula to check this:
((P^39 - P^2 + rnd*p) mod (97 - 48)) + 48

Then get the derivative for the cost.