a) Find the vertex, axis of symmetry, and intercepts, if any, of the function f (x) = -x - 6x - 10. b) Use this information to graph the function. Label key points on the graph. State the domain and range of f(x). Find the intervals where the function is increasing/decreasing. Does f(x) have local maxima/minima? If so, find those local maxima/minima and indicate the values of x where they attained