a) 57.10 mi/ps b) (57.10,1),(114.20,2), and (171.30,3);
A) The constant rate of change in mi/ps is 57.10, since that is what is being added every time.
B) The coordinate points for the graph (time=x,distance=y) would be (57.10,1),(114.20,2), and (171.30,3). the x is horizontal distance, the y is vertical distance.