Use the interactive graph to plot each set of points.
Which sets represent proportional relationships? Check
all that apply.
0 (1,4), (3, 3), (5,9)
(3, 2), (6,4), (9,6)
a (2, 2), (4,4),(6,6)
(1,3), (2,7).(3,8)
(0,0), (1, 2), (2,4), (4,8)

days of the week

step-by-step explanation:

javier earned more money then kyle, so that won't always be a constant term, but the days of the week do not change so that term is always constant.

edit: i meant

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.