Final answer:
To determine the value of x when y=2 in a direct proportionality scenario, the constant of proportionality (k) is required, which has not been provided, thus making it impossible to calculate x with the given information.
Step-by-step explanation:
The question you asked pertains to direct proportionality in mathematics, which is when one variable changes by a certain factor and the other variable changes by the same factor. This is represented by the equation y = kx, where k is a constant.
To find the value of x when y=2, we need to know the constant of proportionality, k. However, you have not provided enough information to determine k in this scenario. With the given information, we cannot calculate the value of x. In general, if we know two pairs of values that are in direct proportion, we can find k by dividing one value of y by the corresponding value of x. Once k is known, we can find any missing value of x or y using the formula y = kx.