Problema Solution
Two trains travel on parallel tracks. The north train leaves metro station at noon and travels north at 50 mph. At the same time, the south train is 480 mi from metro station, traveling south at 80 mph. Show how each train's distance from the station varies with the time since noon. Write the equation, table, and the graph it.
Answer provided by our tutors
we will assume that the south train travels toward the metro station
the equation for the north train's distance is: f(t) = 50*t
the equation for the south train's distance is: g(t) = 480 - 80t
time (h) | north train distance (mi) | south train distance (mi)
0 | 0 | 480
1 | 50 | 400
2 | 100 | 320
3 | 150 | 240
4 | 200 | 160
5 | 250 | 80
6 | 300 | 0