WILL GIVE BRAINLIEST!!The graph shows the distance y, in miles, of a moving train from a station over a certain period of time, x, in hours:
what is the speed (in miles per hour) of the train and why?

 45 miles per hour, because speed is the rate of change of distance

 90 miles per hour, because speed is the initial value of the function

 135 miles per hour, because speed is the distance traveled in unit time

 270 miles per hour, because speed is the distance traveled in a certain time

WILL GIVE BRAINLIESTThe graph shows the distance y in miles of a moving train from a station over a certain period of time x in hourswhat is the speed in miles class=