Identify if the relation is a function & explain your answer (help pls & thanks !!)

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

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%

Measures of the angle of r, 31 s (x+4) t (3x+9)