A tile factory earns money by charging a flat fee for delivery and a sales price of [tex]\$0.25[/tex] per tile. One customer paid a total of [tex]\$3,000[/tex] for 10,000 tiles. The equation [tex]y - 3,000 = 0.25(x - 10,000)[/tex] models the revenue of the tile factory, where [tex]x[/tex] is the number of tiles and [tex]y[/tex] is the total cost to the customer.
1. Which function describes the revenue of the tile factory in terms of tiles sold?
[tex]\square[/tex]
2. What is the flat fee for delivery?
[tex]\$ \square[/tex]