2) An expression that models the number of mongoose on a small Caribbean island in terms of y. the number of years after 1950, is 520 + 8y. Identify which of the following statements is incorrect.
The number of mongoose on the island increases by a constant amount each year.
The number of mongoose on the island in 1950 is 520.
The number of mongoose on the island in 1950 is 512.
The number of mongoose increases by eight for each year after 1950.