To solve this, I would initially simplify this by adding 5y to each side.
This gives us the following:
6y - 4x ≥ 0
Now we can plug in our coordinates! Let's take (1, -1) first.
6(-1) - 4(1) ≥ 0
-6 - 4 ≥ 0
If we evaluate this, we get -10, invalidating this inequality. Let's take the next one, (5, -2) now.
6(-2) - 4(6) ≥ 0
-12 - 24 ≥ 0
This is not true, so the second one is not correct either.
If you go through each pair plugging x and y in, you can determine which ones are correct by checking if it makes sense when done.
The answers are (-2, 1) and (-4, 2).
Hope this helps!
