Select the correct answer.

State the domain and range of the following function.
[tex]\[ \{(6,-8),(9,3),(-3,5),(1,-6),(5,7)\} \][/tex]

A. Domain: [tex]\(\{-8,-6,3,5,7\}\)[/tex]; Range: [tex]\(\{-3,1,5,6,9\}\)[/tex]

B. Domain: [tex]\(\{-3,1,5,6,3\}\)[/tex]; Range: [tex]\(\{-8,-6,5,7,9\}\)[/tex]

C. Domain: [tex]\(\{-3,1,5,6,9\}\)[/tex]; Range: [tex]\(\{-8,-6,3,5,7\}\)[/tex]

D. Domain: [tex]\(\{-3,1,5,6,3\}\)[/tex]; Range: [tex]\(\{-8,-6,6,7,9\}\)[/tex]



Answer :

To correctly identify the domain and range of the given function set [tex]\(\{(6, -8), (9, 3), (-3, 5), (1, -6), (5, 7)\}\)[/tex], let's break it down:

1. Domain:
- The domain of a function is the set of all the first elements (x-coordinates) from each ordered pair.
- From the given pairs, the x-coordinates are [tex]\(6\)[/tex], [tex]\(9\)[/tex], [tex]\(-3\)[/tex], [tex]\(1\)[/tex], and [tex]\(5\)[/tex].

So, the domain is: [tex]\(\{-3, 1, 5, 6, 9\}\)[/tex].

2. Range:
- The range of a function is the set of all the second elements (y-coordinates) from each ordered pair.
- From the given pairs, the y-coordinates are [tex]\(-8\)[/tex], [tex]\(3\)[/tex], [tex]\(5\)[/tex], [tex]\(-6\)[/tex], and [tex]\(7\)[/tex].

So, the range is: [tex]\(\{-8, -6, 3, 5, 7\}\)[/tex].

Putting it all together, the domain and range of the given function are:

- Domain: [tex]\(\{-3, 1, 5, 6, 9\}\)[/tex]
- Range: [tex]\(\{-8, -6, 3, 5, 7\}\)[/tex]

Now compare these with the provided answer options:

A. Domain: [tex]\(\{-8, -6, 3, 5, 7\}\)[/tex]; Range: [tex]\(\{-3, 1, 5, 6, 9\}\)[/tex]
- Incorrect. This option has the domain and range swapped.

B. Domain: [tex]\(\{-3, 1, 5, 6, 3\}\)[/tex]; Range: [tex]\(\{-8, -6, 5, 7, 9\}\)[/tex]
- Incorrect. This option includes an incorrect x-value (duplicated [tex]\(\{3\}\)[/tex]) in the domain and an incorrect range value ([tex]\(\{9\}\)[/tex]).

C. Domain: [tex]\(\{-3, 1, 5, 6, 9\}\)[/tex]; Range: [tex]\(\{-8, -6, 3, 5, 7\}\)[/tex]
- Correct. The domain and range match our determined values.

D. Domain: [tex]\(\{-3, 1, 5, 6, 3\}\)[/tex]; Range: [tex]\(\{-8, -6, 6, 7, 9\}\)[/tex]
- Incorrect. This option includes an incorrect x-value (duplicated [tex]\(\{3\}\)[/tex]) in the domain and incorrect range values ([tex]\(\{6\}\)[/tex] and [tex]\(\{9\}\)[/tex]).

Thus, the correct answer is:

C. Domain: [tex]\(\{-3, 1, 5, 6, 9\}\)[/tex]; Range: [tex]\(\{-8, -6, 3, 5, 7\}\)[/tex]