Here, we take time on the x-axis and speed on the y-axis.
Let us choose the following scale:
On x-axis: 1 cm = 1 hour
On y-axis: 1 cm= 5 km/hr
Now, let us plot (7:00,30), (8:00,45), (9:00,60), (10:00,50), (11:00,70), (12:00,50), (13:00,40), (14:00,45).
These points are joined to get the graph representing the given information as shown in the figure below.
Scale:
On x axis: 1 cm = 1 hour
On y-axis: 1 cm = 5 km/hr