Jack walked from school to his house at a rate of 240 ft/min. his sister jill left school 2 minutes after jack, walking home at a rate of 360 ft/min. how long after jack leaves school does jill catch up to him?

In all honesty, there really is no “work” per say to show. mainly it’s just using the process of elimination. the question is asking which domain(s) would be the most appropriate for the function c(n). n is the number of observed vehicles so right away, 1, 2, and 3 can be eliminated.why? 1, 2 start in the negatives and therefore it is impossible to observe negative cars. so, #4 would be the best answer to the given problem.