Consider the function f(m) : 43':2 4m4. (a) f is increasing for :13 E (b) f is decreasing for m E (c) The relative maxima of f occur at a: = (d) The relative minima of f occur at a: = Note: Input U, infinity, and -infinity for union, co, and 00, respectively. If there are multiple answers, separate them by commas. If there is no answer, input none. Considerthe function f(:z:) : 2:1:3 + 24.2:2 429: l 9. (a) Find all critical numbers c of f. c : (b) f is increasing for m E (c) f is decreasing for :1: 6 Note: Input U, infinity, and -infinity for union, co, and 00, respectively. If there are multiple answers, separate them by commas. If there is no answer, input none. Consider the function f(a:) : 2m2 l 10:1: 9. (a) Find all critical numbers c of f. c : (b) The local maxima values of f are: (c) The local minima values of f are: Note: If there are multiple answers, separate them by commas. If there is no answer, input none