Which of the following equations is quadratic? A. (x+3)(x + 4) = 5
B. 5(4 x + 2) = 3
C. x(x^2 + 1) = 0

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)