The Pool Fun Company has learned that, by pricing a newly released Fun Noodle at $3, sales will reach 9000 Fun Noodles per day during the summer. Raising the price to $4 will cause the sales to fall to 5000 Fun Noodles per day.a. Assume that the relationship between sales price, x, and number of Fun Noodles sold, y, is linear. Write an equation in slope-intercept form describing this relationship. Use ordered pairs of theform (sales price, number sold).The equation is y=-4000x+21000. (Type your answer in slope-intercept form.)b. Predict the daily sales of Fun Noodles if the price is $3.50.sales