During the Summer, an Art Student Makes and Sells Necklaces

question 49

Multiple Choice

During the summer, an art student makes and sells necklaces at the beach. Last summer she sold the necklaces for $10 each and her sales averaged 20 necklaces per day. When she increased the price by $1, she found that she lost 2 sales per day. Assume that this pattern would continue if she kept increasing the price; that is, for every dollar she raised the price, she would sell 2 fewer necklaces per day. Write a model for the student's daily revenue from the sale of x necklaces.