1. The problem statement, all variables and given/known data #1: The graph of f' is shown. Find the intervals on which f increases. #2: The graph of f'(x) is shown. Give the interval(s) where the graph in concave down. 2. Relevant equations Not sure. 3. The attempt at a solution #1: Well, I thought it was (-infinity, infinity), but I got incorrect. X and Y are both increasing. #2: I got (0, infinity) incorrect, which confuses me, because I thought concave down was like an upside down U.