How does the graph of f(x) = -3^2x - 4 differ from the graph of g(x) = -3^2x? A. The graph of f(x) is shifted four units to the left of the graph of g(x) B. The graph of f(x) is shifted four units down from the graph of g(x) C. The graph of f(x) is shifted four units up from the graph of g(x). D. The graph of f(x) is shifted four units to the right of the graph of g(x)​