The constraints of a problem are listed below. What are the vertices of the feasible region?

The constraints of a problem are listed below. What are the vertices of the feasible region?
X+3y≤6
4x+6y≥9
X≤0
Y≥0

  1. (-3/2, 5/2), (9/4, 0), (6,0)
  2. (0,0),(0, 3/2),(9/4, 0)
  3. (0,0),(0,2),(6,0)
  4. (0, 3/2), (0,2), (6,0), (9/4, 0)