1. (1 point) Determine the intervals on which f is increasing or decrease ing, assuming the figure below is the graph of the derivative of f. 19 419 -1 1.0 49 On Interval 1: f is On Interval 2: f is ? On Interval 3: f is ?2. (1 point) If the figure below is the graph of the derivative f', answer the following: 1.0 Where do the points of inflection of f occur? On which interval(s) is f concave down