9. [10.4 Points] Find the inection point[s), if any, of the function. [If an answer does not exist, enter DNE.) x): 69\\/x s (x,y)=[ ) 10. [10.4 Points] Find the inection point[s), if any, of the function. [If an answer does not exist, enter DNE.) ITX) = (x 1W3 (x.y)=( ) 11. [-10.8 Points] Consider the following function. (If an answer does not exist, enter DNE.) 7 900 = 2 1+x (a) Find the interval(s) where the function is increasing and the intervals) where it is decreasing. (Enter your answer using interval notation. If an answer does not exist, enter DNE.) Increasing: Decreasing: (h) Find the relative maxima and relative minima, if any, of the function. (Enter your answers as a commaiseparated list. If an answer does not exist, enter DNE.) Relative maxi mum value(s): Relative minimum value[s]: (c) Determine where the function is concave upward and where it is concave downward. (Enter your answer using interval notation. [fan answer does not exist, enter DNE.) Concave upward: Concave downward: (d) Find the inflection point(s}, if any, of the function. {If an answer does not exist, enter DNE.) (XIV) = ( ) (smallerxwalue) (x,y} = ( ) (largerxivalue)