Question 17 (Mandatory) (10 points) Determine the open intervals on which the graph of function f(x) = (x - concave upward or concave downward. Then identify any points of inflec I Question 17 options: Question 18 (Mandatory) (10 points) Find all relative extrema of the function f(x) = v4 - x2Question 17 (Mandatory) (10 points) open intervals on which the graph of function f (x) = (x - 1)3 (x - 5) is d or concave downward. Then identify any points of inflection Question 18 (Mandatory) (10 points) Find all relative extrema of the function f (x) = v4 - x2