I believe that fast food restaurants show short run production function because of a one fixed input, capital. However, I need to elaborate more and produce the production function equation Q=F (L,K,M...) Can you please help?
Also on a fast food restaurant like McDonalds, fixed and variable cost are fixed is capital, building, stove, refrigerators..... and for variable, wages, and materials, hamburgers, potatoes.... Is that correct?
You are on the right track. Remember, there are different stages to a production function, unless it is linear. Usually, the production function in the short run is curved and so the marginal physical product will vary depending on the amount of labor employed. Think about the size of the working area, and you will see ...