ITEMS INFO 10. Try again Practice similar You have answered 0 out of 3 parts correctly. For the function f(a) = -8x + 7 sin(ac), find all intervals where the function is increasing. f is increasing on 10 (Give your answer as an interval or a list of intervals, e.g., (-infinity,8] or (1,5), (7,10) . Enter none if there are no such intervals.) Similarly, find all intervals where the function is decreasing: f is decreasing on 10 Give your answer as an interval or a list of intervals, e.g., (-infinity,8] or (1,5), (7,10) . Enter none if there are no such intervals.) Finally, find all critical points in the graph of f(x) (enter a values as a comma-separated list, or none if there are no critical points): 10ITEMS INFO Try again Practice similar You have answered 2 out of 4 parts correctly. Use a graph below of f(x) = 3e-8x to estimate the x-values of any critical points and inflection points of f(ac). critical points (enter as a comma-separated list): x = 0 inflection points (enter as a comma-separated list): x = 4 Next, use derivatives to find the x-values of any critical points and inflection points exactly. critical points (enter as a comma-separated list): x = 0 inflection points (enter as a comma-separated list): x =