Solve the Problem. -At a Local Grocery Store the Demand for Ground Beef

Multiple Choice

Solve the problem.
-At a local grocery store the demand for ground beef is approximately 50 pounds per week when the price per pound is $4,but is only 40 pounds per week when the price rises to $5.50 per pound.Assuming a linear relationship between the demand x and the price per pound p,express the price as a function of demand.Use this model to predict the demand if the price rises to $5.80 per pound.

A) p = - 0.15x - 11.5; 40 pounds
B) p = - 0.15x + 11.5; 38 pounds
C) p = 11.5x + -0.15; 40 pounds
D) p = 0.15x + 11.5; 38 pounds