A company has learned that by pricing a newly released toy at $5, sales will reach 2500 per day. raising the price to $7 will cause the sales to fall to
1500 per day. assume that the ratio of change in price to change in daily sales is constant and let x be the price of the toy and y be the number of
sales.
a. find theinear equation that models the price-sales relationship for this toy. [hint: the line must pass through (5,2500) and (7,1500).]
b. use this equation to predict the daily sales of the toy if the price is set at $6.50.