Consider function f:N N defined by f(x) = x +1, and consider function g: R* R defined by g(x) = Vx %3D (a) Determine the image of functionf (2 (b) Is functionf a bijection? If yes, prove it. If not, justify why not. (6 (c) Determine the image of function g (2 (d) Is functiong a bijection? If yes, prove it. If not, justify why not. (6