Suppose lim f(x)=-1, lim f(x)=-1, and f (-3) is not defined. Which of the following statements is (are) true?
I.
lim f(x)=-1
II. f is continuous everywhere except at x = -3.
III. f has a removable discontinuity at x = -3.
(A) None of them
(B) I only
(C) III only
(D) I and III only
(E) All of them

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.

Here, feel free to ask if there are any questions