Question

If two quantities $x$ and$y$ vary directly with each other, then ______ of their corresponding values remains constant.

Answer 1

The explanation to the correct answer.

Compute the required term:

If two quantities$x$and$y$ vary directly with each other, then the ratio of their corresponding values remains constant.

Two quantities $a$and $b$ are said to be in direct proportion if they increase or decrease together. In other words, the ratio of their corresponding

values remains constant. This means that

$\frac{a}{b}=k$ where $k$ is a positive number, then the quantities$a$and$b$ are said to vary directly.

Hence, if two quantities$x$and$y$ vary directly with each other, then the ratio of their corresponding values remains constant.