You can calculate it.
Density correction : You add 1% / 600ft. In this case 9000/600=15%
170*1.15=195 kt
Temperature : In standard atmosphere at 9000 ft it should be -3 (15-9*2).. The OAT is -5.. It's 2 degree colder..
you correct 1% per 5 degree difference.
170*1%*2/5=0.7
195-0.7=Approximately 194KT