A biker starts a trip and rides at a constant velocity of 12 km/h for 0. 20 h. For the next 0. 10 h he bikes at an increased constant velocity and finds that he is at a rest stop 4. 8 km from his starting point. In the next 0. 20 h, half of which he rests, his average velocity is 9. 0 km/h. A. Construct a d-t graph for the trip. B. What is his average velocity for the trip?.

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  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.