1. Given : f (X ) = x- 3x+1 A. 8pts Find the (x,y) Coordinates of the critical points. B. Gpts Determine the open intervals where the function is increasing or decreasing. (use interval notation ) show test points C. 4pts Identify the (x,y ) coordinates of the relative extrema D. Spts Determine the open intervals where the function is concave up and down (use interval notation ) show test points used. E. apts Find (x,y ) coordinates of points of inflection. CLable critical F. 2 pts sketch the graph. pt (s ) and inflectic