A train travels between two cities. The time the trip takes is inversely proportional to the average speed of the train. The trip takes 7 hours
at an average speed of 50 miles per hour. How long would the trip
take if the average speed is 70 miles per hour?

Options
A.27hr
B.9.8hr
C.6.3hr
D.5hr

Suppose you are analyzing the relationship between time and distance given in a table,and there are 4 values for each quantity.you divide distance 2 minus distance 1 by time 2 minus time 1.you then divide distance 4 minus distance 3 by time 4 minus time 3 and get a different answer.what can you say about the relationship?