TO + 4 Suppose that a function g(x) has derivative g'(x) = (5x - 2) In(3x2 - 11x + 7). Find the interval(s) where g(x) is increasing and where g(x) is decreasing. 3. For each of the following functions, determine the intervals where the function is concave upward and the intervals where the function is concave downward. Identify any points of inflection. (a) f(x) = 6x4 + 423 (b) h(a) = 203 + 5x2 + 4