Use the First and Second Derivative Test to identify Critical Points, Intervals of Increase and Decrease, Points of Inflection, Intervals of concavity and make a graph.
1.) f(x) = x3 - 12x

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's