Question

If R= {(1,2), (3,4), (5,6), (8,9)} find the domain and range of R a. Find value of X and Y.​

Answer 1

The Domain and Range of a Set of Ordered Pairs

Answer:

Domain: $x \in \{ 1, 3, 5, 8 \}$

Range: $y \in \{ 2, 4, 6, 9 \}$

Step-by-step explanation:

We are given the set of ordered pairs: $R$. The Domain is just the set containing all the $x$ values of each ordered pair of $R$. Recall that in the ordered pair $(a,b)$, $a$ is the $x$ value. In set $R$, we can see that the $x$ values are $\{ 1, 3, 5, 8 \}$.

For the Range, it is just the set containing all the $y$ values of each ordered pair of $R$. Recall that in the ordered pair $(a,b)$, $b$ is the $y$ value. In set $R$, we can see that the $y$ values are $\{ 2, 4, 6, 9 \}$.