Question

The ordered pairs (1,16) (2,16) (3,32), (4,32) and (5, 48) represents the cost of buying various numbers of CDs through a music club. Identify the domain and range of the relation. Is the relation discrete or continuous? Is the relation a function?

Answer 1

Continuous. Function

Answer 2

Discrete

Explanation:

Given are the ordered pairs as

`(1,16) (2,16) (3,32), (4,32) and (5, 48)`

where I ordered pair represents the no of CDs and II pair the cost of the CDs

We know that number of CDs cannot be in fraction or decimal hence this is discrete.

Domain = I ordered pair =
`{1,2,3,4,5}`

Range = II ordered pair =
`{16,32,48}`

Since each item in the domain has a unique image, we say that this relation is a function.