What is the answer to this math problem?

A city's population in the year x - 1962 was y = 1,834,600. In 1982 the population was 1,842,600. Compute the slope of the population growth (or decline) and choose the most accurate statement from the following: The population is increasing at a rate of 300 people per year. The population is increasing at a rate of 250 people per year. The population is decreasing at a rate of 300 people per year. The population is decreasing at a rate of 400 people per year. The population is increasing at a rate of 400 people per year. The population is decreasing at a rate of 250 people per year