First find the slope by doing change over y/change over x.
(0-6)/(2-0)
-6/2
-3
Now find the y intercept by looking at where the line crosses the y axis.
+6
Now plug the slope and intercept into slope intercept form (y=mx+b)
y= -3x+6
From here, we know that it has a dashed line and that it is shaded above the line. Therefore we should use the > sign.
y>-3x+6