1. (25 Points) A toy factory can produce up to 300 toy sets per day. The revenue from the sale of these toy sets can be modeled by the function R(x)=10x2+3500x66,000, where R(x) is the revenue in dollars and x is the number of toy sets manufactured and sold. Based on this model:

a. Find the y-intercept and explain its significance in this scenario.

b. Determine the x-intercepts and explain their importance in this context.

c. How many toy sets should be produced and sold to achieve maximum revenue? d. What is the highest possible revenue?