A kilogram is 1000 grams. Therefore, 5000 g is 5 kg
It is not direct variation because it does not follow the equation
y = slopex
THE points do not make the equation true .
We know a or b != 0
but a-b==0 so both are the same unknown number
b/a must = 1
so
a/b is equivalent to b/a as a/b=1 as well.
So the last answer choice.