Which describes the difference between the graph of f(x) = 2x3 - 8x + 3 and g(x) = x3 - 4x? a) the graph of g(x) is obtained by shifting f(x) up 3 units and stretching vertically by a factor of 2. b) the graph of f(x) is obtained by shifting g(x) up 3 units and stretching vertically by a factor of 2. c) the graph of g(x) is obtained by shifting f(x) right 3 units and compressing vertically by a factor of 2. d) the graph of f(x) is obtained by shifting g(x) right 3 units and compressing vertically by a factor of 2.