Answer:
Step-by-step explanation:
To have Distance proportional to time, the person or object must keep a steady or constant rate like speed.
Let's first look at A runner sprinting in the 100 meter dash, since it tells you nothing about time it goes to not enough information.
Now look at An airplane starting at the end of the runway and taking off, it tells you nothing about time so, not enough information.
Now on to A marathon runner jogging at a constant speed for 45 minutes, this is distance proportional to time, because the runner has a constant rate.
The graph is distance proportional to time because, a straight slanted line indicates a constant speed. If it were curved it would not be constant.
The table with the number is distance not proportional to time because if you find the slopes of (25-5)/(10-5) and (50-25)/(15-10), they are 4 and 5 respectively which means there will not be a straight line on the graph.
Lastly, an airplane traveling at a constant speed across the country is distance directly proportional to time because it has a constant rate which is speed.
