i tried one of my points and it was wrong. can someone help me find my mistake?

Answer:
Move the top point to the left one
Step-by-step explanation:
You currently have a slope of 2/2 = 1 on the y ≤ 2x - 1, by moving the point over -1, it'll correct your error.
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather