Chapter 8.8, Problem 2E

To determine

To find: Thedomain and the range of the relation and whether the given relation is a function or not.

Answer to Problem 2E

The domain of the given relation is $\left\{1,2,3,4\right\}$ and the range of the given relation is $\left\{-1,3,5,8\right\}$ .

, and the given relation is a function.

Explanation of Solution

Given information:

The given relation is,

  $\left\{\left(1.-1\right),\left(2,3\right),\left(3,5\right),\left(4,8\right)\right\}$

The domain of the given relation is $\left\{1,2,3,4\right\}$ and the range of the given relation is $\left\{-1,3,5,8\right\}$ .

A relation is said to be a function if x -co-ordinate is paired with exactly one y -co-ordinate. In this relationx -co-ordinate is paired with exactly oney -co-ordinate, so the given relation is a function.

Hence, the given relation is a function.