Question

al details were added for this assignment.
2\t$2.50
3\t$3.75
4\t$5.00
what does the rate of change mean in this situation?
the cost increases $2.50 for each additional song that is downloaded.
the cost increases $1.25 for each additional song that is downloaded.
the cost increases $5.00 for each additional song that is downloaded.
the cost increases $0.25 for each additional song that is downloaded.

Explanation:

To find the rate of change, we calculate the difference in cost divided by the difference in the number of songs. From 2 to 3 songs: cost changes from $3.75 to $5.00? Wait, no, looking at the table (assuming the first row is maybe 1 song at $2.50, 2 at $3.75, 3 at $5.00? Wait, no, the numbers: 2, 3, 4 with costs $3.75, $5.00? Wait, maybe the number of songs: when number is 2, cost is $3.75; number 3, cost $5.00? Wait, no, let's check the differences. Let's take two points: (2, 3.75) and (3, 5.00). The rate of change is (5.00 - 3.75)/(3 - 2) = 1.25/1 = $1.25 per additional song. Wait, or maybe (1, 2.50), (2, 3.75): (3.75 - 2.50)/(2 - 1) = 1.25/1 = $1.25. So the rate of change is $1.25 per additional song, which matches the option "The cost increases $1.25 for each additional song that is downloaded."

Answer:

The cost increases $1.25 for each additional song that is downloaded.