I only need help with the first question.

17. Use your graphing calculator to determine the following for the polynomial function: f(x) = x - 4x - 2x3 + 5x +9 (8 marks) a) Domain a) b) Range c) The zeros c) d) Y-intercept e) coordinates of relative maximum e) f) coordinates of relative minimum #) intervals where f (x) 2 0 g) h) intervals where f (x)