Discover new information and get your questions answered with IDNLearn.com. Find the answers you need quickly and accurately with help from our knowledgeable and experienced experts.

Suppose that the relation \( S \) is defined as follows:

[tex]\[ S = \{(9,2), (-6,2), (-2,-6)\} \][/tex]

Give the domain and range of \( S \). Write your answers using set notation.

[tex]\[ \text{domain} = \square \][/tex]
[tex]\[ \text{range} = \square \][/tex]


Sagot :

To find the domain and range of the given relation \( S = \{(9, 2), (-6, 2), (-2, -6)\} \):

1. Domain:
- The domain of a relation is the set of all first elements (x-values) from the ordered pairs.
- From the pairs \((9, 2)\), \((-6, 2)\), and \((-2, -6)\), the first elements are \(9\), \(-6\), and \(-2\).
- Therefore, the domain is the set of these first elements.

[tex]\[ \text{domain} = \{9, -6, -2\} \][/tex]

2. Range:
- The range of a relation is the set of all second elements (y-values) from the ordered pairs.
- From the pairs \((9, 2)\), \((-6, 2)\), and \((-2, -6)\), the second elements are \(2\), \(2\), and \(-6\).
- However, in a set, we do not list duplicate elements. So, we only need one instance of each unique second element.

[tex]\[ \text{range} = \{2, -6\} \][/tex]

Therefore, the domain and range of the relation \( S \) are:

[tex]\[ \text{domain} = \{9, -6, -2\} \][/tex]
[tex]\[ \text{range} = \{2, -6\} \][/tex]