Question

Tell whether x and y show direct variation. Explain your reasoning. If so, find k.x/y = 2

Answer 1

Is a direct variation, k = 2

Step-by-step explanation:

A direct variation is when a number can be obtained by multipliying another number by a constant. That constant is often called k.

The form of a direct variation is:

`x=ky`

We can rearrange the equation:

`(x)/(y)=k`

This is exactly the situation in the problem, and also tell us that k = 2