thank you.

2. (25 points - 5 points each part) Consider the following graph (a) At which point is the second derivative greater, b or d? Briefly and concisely explain why. (b) On the sketch above, clearly indicate where the curve is concave up and where it is concave down. (e) Put all this together to sketch the graph of the second derivative of this function. Label the points that correspond to a through d on your sketch