What is the​ long-run cost function for a​ fixed-proportions production function when it takes two units of labor and four units of capital to produce one unit of​ output? Describe the long-run cost curveLOADING.... Multiply the inputs by their prices and sum to determine total cost. Let w be the cost of a unit of labor and r be the cost of a unit of capital. The​ long-run cost function​ C(q) for the​ fixed-proportions production function in terms of​ w, r, and q is