Below is the graph of the boa constrictor population you learned about in the video. The x-axis is t, the time in years, and the y-axis is p(t), the snake population for any given year. In this case, t = 0 indicates the year they started keeping track of the constrictor population. Scientists want to know how the population is changing every two years so they can make predictions about the future.

The graph is of a function in the form p(t) = a • bt. What is the function?