Describe why this graph in fact demonstrates this behavior

Nice work !  With this deceptively brief question, you score a twofer.

We don't know which graph, and we likewise don't know which behavior.

Otherwise, we're all over it.

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.