Question 15 of 24 This question: 1 point(s) possible Sketch the graph of the polynomial function f(x) = - (x + 3) + 1. Determine the largest open Ay O intervals of the domain for which the function is (a) increasing or (b) decreasing. Use the graphing tool to graph the equation. Click to enlarge X graph 10 (a) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The function is increasing on (Type your answer in interval notation.) O B. The function is not increasing on any interval of the domain. (b) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The function is decreasing on (Type your answer in interval notation.) O B. The function is not decreasing on any interval of the domain