# What is the domain and range of {( -1, -9), ( -5, -10), ( -4, 1), ( 10, -6), ( 5, -2)}?

Aug 10, 2015

Domain: $x \in \left\{- 1 , - 5 , - 4 , 10 , 5\right\}$
Range: $y \in \left\{- 9 , - 10 , 1 , - 6 , - 2\right\}$

#### Explanation:

Assuming the given set represents values of $\left(x , y\right)$ where $x$ is being mapped into $y$ (that is $y$ is a function of $x$).

If $y$ is a function of $x$

$\textcolor{w h i t e}{\text{XXXX}}$The domain is the set of all valid values for $x$.

$\textcolor{w h i t e}{\text{XXXX}}$The range is the set of all valid values for $y$