Determine if the function f(x) = VX is differentiable at x = - 27. If not, identify why. f(x) =Vx is not differentiable at x = - 27 because lim Vx x - - 27 does not exist. O f(x) =\\x is differentiable at x = - 27. O f(x) =Vx is not differentiable at x = - 27 because f'( - 27) is not defined. O f(x) =Vx is not differentiable at x = - 27 because f( - 27) is not defined