You can
put this solution on YOUR website!y>3. Determine the correct half-plane
y=3 is a horizontal line going through 3 that looks like:

Because y>3 and not = to 3, you would use a dashed line instead of a solid one.
You would then shade above the line because y is greater than 3.
(I can't show you graphs of inequalities, but I hope that helped.)
Happy Calculating!!!