How does the graph change from point g to point k

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

The population of a small rural town in the year 2006 was 2,459. the population can be modeled by the function below, where f(x residents and t is the number of years elapsed since 2006. f(t) = 2,459(0.92)

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2