Kristin owns a bakery called kristin's cakes n' such and is considering lowering the price of her
cakes. kristin polls her customers and determines that she can sell 100 cakes each week when she
charges $25 each. she also discovers that for every $1 decrease in the price of the cake, she will sell
5 more cakes. the graph below represents kristin's projected weekly revenue for each decrease in
price.