Question

The graph shows the distance, y in miles, of a moving train from a station for a certain period of time, x, in hours: (below)

What is the speed (in miles per hour) of the train?
100 miles per hour
50 miles per hour
150 miles per hour
400 miles per hour

Answer 1

50 because Y=100 if you go an hour from there than you get 50 more miles