State the domain and range and state if it is a function or not​

Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 3

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

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)