Now, we substitute our function of x C(x) = ln/9x+1| 1 In(19x+1)+K Step 6 Now, we know the fixed costs are 250. Thus, we have the following. C(0) = 250 Plugging this into the cost function, we can find K. 0 + 1 ) + K 250 = C(0) = In( | 0 In(+1) 0+ = (0) + K 250 250 = K Step 7 Finally, we can determine the cost function. C(x) = X