The scatterplot above shows the number of visitors to a railroad museum in Pennsylvania each year from 1968 to 1980, where represents the number of years since 1968 and represents the number of visitors. The x-axis shows the years since 1968, and the y-axis shows the number of annual visitors. A line of best fit is also shown. Which of the following statements about the line of best fit is true?
The estimated number of visitors in 1968 was about 4,700, and the estimated annual increase was about 16,000 visitors.
The estimated number of visitors in 1968 was about 16,000, and the estimated annual increase was about 4,700 visitors.
The estimated number of visitors in 1968 was about 40,000, and the estimated annual increase was about 4,700 visitors.
The estimated number of visitors in 1968 was about 16,000, and the estimated annual increase was about 40,000 visitors.
