Entered Answer Preview Result Message -15 -5 (-11.781,-3.92699) correct 4 4 0 0 3.13 3.13 (0,3.13) correct correct (0,3.13) 50% correct There should be more intervals, sets or unions in your list At least one of the answers above is NOT correct. (1 point) Answer the following questions for the function f(x) = sin (3) defined on the interval [-15.71,3.13]. Remember that you can enter pi for as part of your answer. a.) f(x) is concave down on the region(s) (-15pi/4, -5pi b.) A global minimum for this function occurs at 0 c.) A local maximum for this function which is not a global maximum occurs at 3.13 d.) The function is increasing on the region(s) (0, 3.13) Note: In some cases, you may need to give a comma-separated list of intervals, and intervals should be given in interval notation. Note: You can earn partial credit on this pblem.