Can someone help me out a little I got confused when it said what is the slope of the line.

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%

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).

Find the root(s) of f (x) = (x- 6)2(x + 2)2.