A rocket is shot straight up into the air. If f(t) represents the height in feet of the rocket at time, t, seconds and g(t) is a constant function that represents the height of a platform, what situation can be described by (f+g) (t)? Include a domain of (f+g) (t).
The expression (f+g) (t) represents the total height of the rocket above the ground at time t, taking into account both the height of the rocket itself (f(t)) and the height of the platform (g(t)).
If g(t) represents the height of a platform and f(t) represents the height of a rocket launched from that platform, then (f+g) (t) represents the total height of the rocket above the ground at time t, taking into account the height of the platform.
The domain of (f+g) (t) would be the intersection of the domains of f(t) and g(t), as the rocket can only be launched from the platform when both the rocket and platform heights are defined.