Question

What is the domain of the following relation?

$\left\{\left(\mathbf{2}\mathbf{,}-\mathbf{1}\right),\left(4,3\right),\left(7,6\right)\right\}$

Short answer

The domain of$\left\{\left(2,-1\right),\left(4,3\right),\left(7,6\right)\right\}$ is $\left\{2,4,7\right\}$.

Step-by-step solution

Step 1. Define domain.

Domain is defined as the set of first numbers of the ordered pairs.

Step 2. Apply the definition of domain.

Apply the definition of a domain to the given relation. First numbers of the ordered pairs are 2,4 and 7.

Step 3. Write the conclusion.

The domain of the relation$\left\{\left(2,-1\right),\left(4,3\right),\left(7,6\right)\right\}$ is $\left\{2,4,7\right\}$.