The graph shows the distance, y, that a car traveled in x hours:

a graph is shown with x axis title as time in hours. the title on the y axis is distance traveled in miles. the values on the x axis are from 0 to 5 in increments of 1 for each grid line. the values on the y axis are from 0 to175 in increments of 35 for each grid line. a line is shown connecting ordered pairs 1, 35 and 2, 70 and 3, 105 and 4, 140. the title of the graph is rate of travel.

what is the rate of change for the relationship represented in the graph?
fraction 1 over 35
fraction 1 over 34
34
35