2 -6
4
2
2
-2-
4
-6-
-8
(a) The function f is increasing over which intervals? Choose all that apply.
O (-0,-8)
(-8,-5) 0 (-1,3)
0 (-1,7)
(7,9)
O (9, )
Х
(b) The function f has local maxima at which x-values? If there is more than one value,
separate them with commas.