Afood packet is dropped from a helicopter and is modeled by the function f(x) = -16x2 + 14400. the graph below shows the height f(x), in feet, of the food packet at different times x, in seconds: use the graph to determine the reasonable domain of f(x) based on the context. 0 ≤ x ≤ 30 0 ≤ x ≤ 14400 -30 ≤ x ≤ 30 all real numbers