Question

What equation can be written in a form that shows a proportional relationship using variables

Answer 1

y = kx

Explanation:

An equation shows a proportion relationship when it can be written in the following format:

`(y)/(x)`

So, in the context of this exercise, we need to pass x to the other side of the equation dividing, by itself.

In this question:

y = k+x

x alone cannot be passed dividing, just k+x

Y = k, there is no x.

The answer is y = kx, because we can also write this as:

`(y)/(x)=k`