please explain and show work for answers A-D.

4. Find at least two candidate functions, fi(7) and /2(2) for finding roots of g(x) via fixed point iteration. In other words, convert the problem of finding a root of g into a problem of finding a fixed point of f, or f2. (a) g(x) (b) g(x) = x + cost (c) g(x) = 6r + 12r- - 8 d) s(2)