The graph below shows the profit for a shoe company based on how many shoes they sell.
(A graph that y axis(profit) goes from -500 to 4500. X axis is 0 to 200. a curved line starting at x axis 20, and ending on 200. its peak at around the 110 x axis, and 4100 on the y axis.)
1) State the vertex, as an order pair (x,y).
2) The axis of symmetry is x=
3) What is the most number of shoes the company can sell before their profit drops below zero.
4) How much profit does the company make when they sell 100 shoes?
1) The vertex is (110, 4100)
2) The axis of symmetry is x = 110
3) The company can sell about 55 shoes before their profit drops below zero.
4) The company makes $1600 profit when they sell 100 shoes.