How do you solve the following questions?

(2 points) Find the critical point and the interval on which the given function is increasing or decreasing, and apply the First Derivative Test to the critical point. Let f(x) = 2 x2+3 ls f a maximum or minumum at the critical point? Local maximum v The interval on the left of the critical point is (0,150) . On this interval,f is increasing v Whilef' is positive v . The interval on the right of the critical point is . On this interval,f is decreasing v whilef' is negative v . Previous Problem List Next Results for this submission Entered Answer Preview 8 8 (10, 11) (10, 11) At least one of the answers above is NOT correct. (1 point) If the figure below is the graph of the derivative f', answer the following: Where do the points of inflection of f occur? 8 On which interval(s) is f concave down? (10,11)1. Find the open interval(s) on which f is concave upward. Answer (in interval notation): (1,3) 2. Find the open interval(s) on which f is concave downward. Answer (in interval notation): 3. Find the coordinates of the points of inflection. List your answers as points in the form (a, b). Answer (separate by commas)