Business Calculus Online-Summer 2022 youssef shazly 07/06/22 11:18 PM Question 10, 5.3.39 HW Score: 0%, 0 of = Homework: 5.3 Part 1 of 3 19 points Points: 0 of 1 Save 6 Find the open intervals where the function f(x) = (x - 6) is concave upward or concave downward. Find any inflection points. Select the correct choice below and, if necessary, fill in the answer box within your choice. O A. The function has a point of inflection at (Type an ordered pair using integers or fractions. Simplify your answer. Use a comma to separate answers as needed.) O B. The function does not have an inflection point