The Pool Fun Company has learned that, by pricing a newly released Fun Noodle at $5, sales will reach 7000 Fun Noodles per day during the summer. Raising the price to $6 will cause the sales to fall to 3000 Fun Noodles per day.

Assume that the relationship between sales​ price, x, and the number of Fun Noodles​ sold, ​ y, is linear. Use ordered pairs of the form​ (sales price, number​ sold).

1. Write an equation in​ a slope-intercept form describing this relationship.
2. Predict the daily sales of Fun Noodles if the price is $5.50