Question

Question #363c9

Answer 1

`Y prop X` with a proportionality constant of 2 means `Y = 2X`

Explanation:

We can write the statement "Y is proportional to the value of X ", which means that if X is double, Y is also doubled etc, as follows:

`Y prop X`
Y is proportional to X

To convert a proportionality relationship to an equation, we need some constant or coefficient, which we would write as:

`Y = kX`, where `k` is the proportionality constant.

In this case, `k` is 2, so

`Y = 2X`