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 description of the domain of (f+g)(t) . (2 points)
The situation described by (f+g)(t) represents the combined height of the rocket and the platform at time t. This would be the total height above ground level.
The domain of (f+g)(t) would be the intersection of the domains of f(t) and g(t), meaning that it would be defined for all values of t for which both f(t) and g(t) are defined. This would typically be all real numbers, unless there are restrictions on the height functions.