Let where is the function whose graph is shown below. You can assume the graph of is symmetric across the -axis.


(a) Evaluate and


(b) Estimate and to the nearest half-unit.


(c) Determine the -interval on which is increasing. If is never increasing, type "N" in each blank.

-interval:


(d) Where does have its maximum value?


Graph of :

You can earn partial credit on this problem.