An engineer lives 21 miles east and 22 miles north of a water tower. A bridge she is building is located 12 miles west and 34 miles south of the water tower. Find the
distance between where the engineer lives and the bridge

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.