$\displaystyle \triangle{A}{B}{C}$  has coordinates $\displaystyle {A}{\left(-{2},-{4}\right)}$  , $\displaystyle {B}{\left(-{2},{1}\right)}$ , and  $\displaystyle {C}{\left({3},{1}\right)}$  and is shown below.  

The ordered pair $\displaystyle {\left({8},{y}\right)}$  is on line $\displaystyle {A}{C}$ .  Create a similar triangle to the one plotted to help you find the value of $\displaystyle {y}$ .   Enter the value of $\displaystyle {y}$ for this ordered pair.

 $\displaystyle {y}=$