John owns a house painting company. an experienced crew can prep 6 rooms and paint 2 rooms in a week. a novice crew can prep 2 rooms and paint 2 rooms in a week. an experienced crew gets paid $1000 per week and a novice crew gets paid $750 per week. to minimize cost, john wants to pay for no more than 12 rooms prepped and 8 rooms painted per week. how many weeks should each crew be scheduled to minimize cost? constraints: 6x + 2y ≤ 12 2x + 2y ≤ 8 x ≥ 0 y ≥ 0 
 objective function: c = 1000x + 750y graph the constraints and complete the process to find the minimized cost. vertices: (     ,      ) (     ,      ) (     ,      ) (     ,      )