# How do you find the range of the following relation R{(3,-5), (1,2), (-1, -4), (-1,2)}?

Nov 21, 2016

$R : \left\{- 5 , - 4 , 2\right\}$

#### Explanation:

The range is the number on the right (the $y$ coordinate)

$\left(3 , \textcolor{red}{- 5}\right) , \left(1 , \textcolor{red}{2}\right) , \left(- 1 , \textcolor{red}{- 4}\right) , \left(- 1 , \textcolor{red}{2}\right)$

The range are $\textcolor{red}{- 5} , \textcolor{red}{2} , \textcolor{red}{- 4} , \textcolor{red}{2}$

If there's a repeated number write it once

Regarange the numbers from least to greatest

$R : \left\{- 5 , - 4 , 2\right\}$