Cost Suppose the total cost C(x) (in dollars) to manufacture a quantity x of weed killer (in hundreds of liters) is given by
C(x) = x3 − 2x2 + 8x + 50.
a. Where is C(x) decreasing?
b. Where is C(x) increasing?
Step 1 of 3
In this problem, we have to find the interval where is increasing or decreasing.