Answer
$y=-5x;-60$
Work Step by Step
start with the function form of a direct variation
$y=kx$
now substitute 2 for x and -10 for y
$-10=k(2)$
divide both sides by 2 and solve for $k$
$\frac{-10}{2}=\frac{k(2)}{2}$
$k=-5$
write an equation and substitute -5 for k.
$y=-5x$
Now solve for x=12
$y=-5(12)$
$y=-60$