3b. The graph shows a school's profit P for selling x lunches on one day. PART B: The school wants to change the price of lunch so that when it sells more than 30
lunches in one day, it begins to make a profit. How much would the school need
to charge for each lunch in this situation?
School Lunches
Profit (dollars)
150 P
100
(65, 45)
50
(50,0)
0
10 20 30 50 60 70
-50
-100
(20) 90)
-1500
(0, -150)
200
-250
Number of lunches sold