1. (7 points) Consider the function f (x) = 82 -13x . Which of the graphs below best matches the graph of f (x)? Note that the horizontal scale on the graph goes from = -1000 to x = 1000, and the vertical scale is unspecified. CLEARLY indicate your answer, (a), (b), (c), or (d), and briefly EXPLAIN how the TWO most important features of the coefficients and powers appearing in f(2) justify your conclusion. (a) (b) V -1000 -1090 X + 1000 1900 (c) (d) y -1000 1000 X X -1000 1000 2. (7 points) Below is a sketch of the graph of the functionf (x) = 10x3 -23x +150 (not to scale). Find the coordinates of the point (a, b) (i.e., solve for a and b). Show all your work