A company has learned that by pricing a newly released toy at $5, sales will reach 1500 per day. Raising the price to $7 will cause the sales to fall to 500 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 the linear equation that models the price-sales relationship for this toy. (Hint: The line must pass through
(5,1500) and (7,500).]
b. Use this equation to predict the daily sales of the toy if the price is set at $6.50.

Find the linear equation that models the price-sales relationship for this toy.
y=0