3, 1.5, 0, -1.5, -3,-4.5 ,6 , 7.5 what is the common difference recursive function and explicit function

Aline that intersects one of two parallel lines intersects the other also always sometimes never

Aline has a slope of . which ordered pairs could be points on a parallel line? check all that apply. (-8, 8) and (2, 2) (-5, -1) and (0, 2) (-3, 6) and (6, -9) (-2, 1) and (3,-2) (0, 2) and (5,5)

How do you find the distance of each number from the mean