Chapter 8, Problem 1CST

To determine

What is the domain of the relation $(8,2),(6,4),(4,2),(2,4)$ ?

Answer to Problem 1CST

The domain of our given relation is $2,4,6,8$ and option B is the correct choice.

Explanation of Solution

Given:

Four choices:

  $\text{A}\text{. }2,4\text{ B}\text{. }2,4,6,8\text{ C}\text{. }6,8\text{ D}\text{. }2,4,8$

Calculation:

We know that x values of ordered pairs represent domain of relationship and y values of ordered pair represent range of relationship.

We can see that x-values of our given relation are $2,4,6,8$ .

Therefore, the domain of the given relation is $2,4,6,8$ and option B is the correct choice.