Suppose a business has a marginal cost C?(x)=22x+88 and that the cost of 12 units is 2734. Find the cost function Solution From C(x) = 22x+88 take an integral, then, it becomes 11x^2+88x + C at C(12) = 2734 2734 = 11(12)^2 + 88(12) + C ==> C = 94 11x^2+88x+94 answer.