Question

The table shows the number of songs that were downloaded and the total cost for buying the songs. What is the rate of change for the function in the table? 2 songs for $1 $2 per song 4 songs for $1 $4 per song

Answer 1

Answer:

2 dollars per song

Step-by-step explanation:

Answer 2

Using a proportional relationship, it is found that the rate of change is of $2 per song.

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

In which k is the constant of proportionality, also called rate of change.

Researching the problem on the internet, it is found that the cost of one music is of $2, of two musics is of $4, of three musics is of $6, and so on, hence the rate of change is given by:

k = 6/3 = 4/2 = 2/1 = $2 per music.

More can be learned about proportional relationships athttps://brainly.com/question/10424180

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