Which relationship shows an inverse variation?
choices:
x = 1, 2, 3, 4
y = 3, 6, 9, 12

x = 1, 2, 3, 4
y = 60, 30, 20, 15

x = 1, 2, 3, 4
y = 15, 13, 11, 9

x = 1, 2, 3, 4
y = 6, 11, 20, 35

In inverese, when x increases, y deceases, when x decreases, y increses

we see that x increases for all choices

therefor the y values of the answer should be decreasing

first one is increasing, wrong
second is decreasing
third is also decreasing
fourth is increasing

look at second and third

remember
xy=k for inverse
so just solve for k for each and see if it is valid

second
1,60
(1)(60)=k
60=k

2,30
(2)(30)=60
60=60
true

therefor this is nswer

2nd option is answer