4. Which statement best describes the end behavior of f(x) = 9 – 3x - 4x4 + 2x3? f(x) approaches « as x approaches co, and f(x) approaches - co as x
approaches -
O f(x) approaches « as x approaches co, and f(a) approaches was
approaches - 0.
O f(x) approaches - as x approaches co, and f(x) approaches so as x
approaches -
O f(x) approaches - as x approaches co, and f(x) approaches -« as a
approaches -