Answer:

Explanation:
We can rewrite the inequality:

in slope-intercept form by isolating y.
First, we can add 6 to both sides.


Next, we can subtract
from both sides.


Then, we can divide both sides by 3.


Finally, we can re-arrange the right side to fit the slope-intercept form model:

where
is the boundary line's slope and
is its y-intercept.
