# Using the domain values {-1, 0, 4}, how do you find the range values for relation y=2x-10?

Jun 9, 2018

$y \in \left\{- 12 , - 10 , - 2\right\}$

#### Explanation:

$\text{substitute the values from the domain into } y = 2 x - 10$

$x = \textcolor{red}{- 1} \to y = 2 \left(\textcolor{red}{- 1}\right) - 10 = - 12$

$x = \textcolor{red}{0} \to y = 2 \left(\textcolor{red}{0}\right) - 10 = - 10$

$x = \textcolor{red}{4} \to y = 2 \left(\textcolor{red}{4}\right) - 10 = - 2$

$\text{range is } y \in \left\{- 12 , - 10 , - 2\right\}$