Question

A food packet is dropped from a helicopter and is modeled by the function f(x) = −12x2 + 19200. 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.

All real numbers
x ≤ 19200
−40 ≤ x ≤ 40
0 ≤ x ≤ 40

Answer 1

@Loser66

Answer 2

Hey can you help me out?

Answer 3

What do you think?

Answer 4

im not sure, i was thinking maybe A, but im bad at math

Answer 5

when something falls, does it stop at the ground or go under the ground?

Answer 6

It stops at the ground

Answer 7

Yes, so, although the graph passes the x axis, in fact, when it hits the ground, the function stop working, right?

Answer 8

right

Answer 9

hence, from the right, it stops here.