Consider the function f(x} = log9 x. {a} What is the domain of 1\"? (Enter your answer using interval notation.} (b) Find F1. f1I:X:l = (c) Let x be a real number between F29 and 6,561. Determine the interval in which x) will be found. [Enter your answer using interval notation.) (d) Determine the interval in which x will be found if for) is negative. (Enter your answer using interval notation} H {e} 1when x) is increased by one unit, x must have been increased by what factor? U [f] Find the ratio of XL i=S X2 to x2 given that fowl) = 3n and f(x2) = n