Combined estimates for Etosha National Park and the Northwestern Population

The elephant population in northwestern Namibia and Etosha National Park can be predicted by the expression 2,649(1.045)^b, where b is the number of years since 1995.

What does the value 2,649 represent?

A.)  the predicted increase in the number of elephants in the region each year
B.)  the predicted number of elephants in the region in 1995
C.)  the year when the elephant population is predicted to stop increasing
D.)  the percentage the elephant population is predicted to increase each year

The figure shows the graphs of the function y = f(x) and y = g(x).  The four indicated points all have integer coordinates.

If g(x) = k ∙ f(x), what is the value of k?

Use the information provided to answer Part A and Part B.

Let a represent a non-zero rational number and let b represent an irrational number.