Question

The amount Lin's sister earns at her part-time job is proportional to the number of hours she works. She earns $9.60 per hour. Is y a function of X. Write an equation describing x as a function of y​

Answer 1

Using proportional relationships, it is found that:

• y is a function of x, given by $y = 9.6x$.

• x as a function of y is given by $x = \frac{9.6}{x}$

What is a proportional relationship?

A proportional relationship is a function in which the output variable is given by the input variable multiplied by a constant of proportionality, that is:

$y = kx$

k is the constant of proportionality.

In this problem, considering:

• x as the number of hours she works.

• y as her earnings.

• Lin's sister earns $9.60 per hour.

Hence, y is a function of x, given by:

$y = 9.6x$

Also, we can write x as a function of y, as follows:

$x = \frac{y}{9.6}$

You can learn more about proportional relationships at https://brainly.com/question/25067191