Answer:
The practical domain for the function f(x) will be [0,5].
Step-by-step explanation:
A model rocket is launched from the ground and its height from the ground is given by f(x), t seconds after its launch.
It is given that the rocket reaches maximum height at t = 2.5 seconds and comes back to the ground after t = 5 seconds.
So, at t = 0 seconds, the rocket was at the ground and hence, t can not be negative and after t = 5 seconds the rocket comes back to the ground and hence, t can not be greater than 5 seconds.
Therefore, the practical domain for the function f(x) i.e. the values of t lies in the interval [0,5]. (Answer)
