The hourly wage increase each employee receives each year depends on their number of years of service. Every three years of service means an increase of $0. 50 per hour. So, employees that have been with the company for less than three years can expect to receive an increase of $0. 50 per hour. Employees that have been with the company for at least three years, but less than six years can expect an increase of $1. 00 per hour. Employees that have been with the company for at six years, but less than nine years, receive an increase of $1. 50 per hour. And, employees of at least nine years, but less than twelve years receive an increase of $2. 00 per hour. Choose a function to represent this scenario.