for the first question, i picked the points (0, 2) and (-1, -1). i used the slope form y2-y1/x2-x1 or in this case -1-2/-1-0 which equals to -3/-1=3. for the second question you subtract 120-140/5-0 which equals -20/5 simplified to -4 and the y intercept is 140 because x=0
The median (half-above and half-below) could not have changed, because "corrected value was still lower than any other salary" does not change the position of that observation (still least) in the sorted list of salaries.
