F(x)= x-6. Find the inverse of f(x) and its domain

I'm terrible at math any here is appreciated.

Given right triangle xyz, which correctly describes the locations of the sides in relation to

11. minitab software was used to find the lsrl for a study between x=age and y=days after arthroscopic shoulder surgery until an athlete could return to their sport. use the output to determine the prediction model and correlation between these two variables. predictor coef se coef t p constant -5.054 4.355 -1.16 0.279 age 0.2715 0.1427 1.9 0.094 r-sq = 31.16%