1.A movie theatre seats 300 people. For any particular show, the amount of money the theatre makes is a function of the number of people, , in attendance. If a ticket costs $13.50, find the domain and rangeof this function. Sketch its graph.

2.A floor-refinishing company charges $1.83 per square foot to strip and refinish the tile floor for up to1000 square feet. There is an additional charge of $350 for toxic waste disposal for any job that includes more than 150 feet of tile. a. Express the cost, , of refinishing a floor as a function of the number of square feet, , to be refinished. b. Graph the function. State the domain and range.