Question

Sully is a vocalist in a rock band. The table provided shows the number of tracks his band records and the respective number of albums consisting of those recordings.

What is the rate of change of the number of tracks Sully’s band records with respect to each album the band releases?
A.
17 tracks per album
B.
2 tracks per album
C.
8 tracks per album
D.
6 tracks per album

Answer 1

C.

8 tracks per album

Explanation:

16/2 = 8

32/4 = 8

48/6 = 8

64/8 = 8

80/10 = 8

Answer 2

C

Explanation:

The rate of change here will be the difference in the number of tracks divided by the difference in the number of albums.

Let's pick two random rows (it doesn't matter which two because they will produce the same result): (2, 16) and (4, 32).

The rate of change is:
`(32-16)/(4-2) =(16)/(2) =8`

The answer is thus C.