1.Identify the domain and range of the following relation.
{(3,7),(3,8),(3,-2),(3,4),(3,1)}
A.Domain:{3}
Range:{-2,1,4,7,8}
B.Domain:{-2,1,4,7,8}
Range:{3}
C.Domain:{all real numbers}
Range:{all real numbers}
D.Domain:O/
Range:O/
You forgot to indicate your choice.
What does O/ mean? I have never seen that.
it means not a real number i think
The correct answer is A. Domain: {3} Range: {-2, 1, 4, 7, 8}
To identify the domain and range of a relation, we need to look at the list of ordered pairs and determine the set of all possible x-values (domain) and y-values (range).
In this case, we have the following relation: {(3,7),(3,8),(3,-2),(3,4),(3,1)}
The x-values in this relation are all 3. So, the domain is the set of possible x-values, which is {3} because there is only one distinct x-value in this relation.
The y-values in this relation are 7, 8, -2, 4, and 1. So, the range is the set of possible y-values, which is {-2, 1, 4, 7, 8} because these are all the distinct y-values in this relation.
Therefore, the correct answer is A. Domain: {3} Range: {-2, 1, 4, 7, 8}.