Answer:
If the given equation is
comparing with
![y = kx](https://img.qammunity.org/2021/formulas/mathematics/middle-school/1gd3aqw83dm1pbbole5g3vytvoi3pw440d.png)
Therefore, the option
is correct.
Step-by-step explanation:
Given
We know when
varies directly with
, means that when x increases, y increases by the same factor
i.e.
y ∝ x
![y = kx](https://img.qammunity.org/2021/formulas/mathematics/middle-school/1gd3aqw83dm1pbbole5g3vytvoi3pw440d.png)
where k is the 'constant of proportionality.
![k\:=\:(y)/(x)](https://img.qammunity.org/2021/formulas/mathematics/college/ng2njg1ixchrp71kqx3d57c7r9xowqeuar.png)
If the given equation is
comparing with
![y = kx](https://img.qammunity.org/2021/formulas/mathematics/middle-school/1gd3aqw83dm1pbbole5g3vytvoi3pw440d.png)
Therefore, the option
is correct.