Consider the function on the interval .
  1. Find the first and second derivatives.
  2. Identify the graph that displays in blue and in red.






  3. Using the graphs of and , indicate where is concave up and concave down. Give your answer as a list of intervals separated by commas. If there are no such intervals, type “None”. interval
    • is concave up on
    • is concave down on

You can earn partial credit on this problem.