This was the final week of school of 2014 and it went out with a bang with the way we were able to conclude with chapter four.After chapter four we had a quiz on the chapter along with the previous topics we discussed such as limits and derivatives.I had some trouble with finding the critical points and the other information we had learned in the last chapter about graphing.However,I was able to solve this problem by remembering how to do problems such as these with a trick.So for local max/mins,you in the numbers you found in the 1st derivative(critical numbers) to the second derivative to find the local max or min.For a local max if the value of the second derivative is less than zero then it is a local max and if the value of the second derivative is greater than zero it is a local min.In a special case where the value of the second derivative equals zero then anything is possible.