Question

Does the data in the data in the table represent a direct variation or an inverse variation. write an equation to model the data in the table

x 2 4 8 12
y 4 2 1 2/3​

Answer 1

y = 8/x

Explanation:

Y goes down when X goes up, so the variation is not direct.

The product of x and y is a constant, 8, so that is the constant associated with the inverse variation formula:

y = k/x

xy = k = 8

So, the model is ...

y = 8/x