Answer:
The height of the object at the time of the launch is

Explanation:
We know that the height in meters, x seconds after the launch is modeled by the following function :

For example, after
from the launch the height of the object is :


If we want to know the height of the object at the time of the launch we will need to find the height of the object at
because that is the instant where the object is launched.
If we use
in
⇒

We find that the height of the object at the time of launch is
