Im not sure how to explain how to do a graph, but I hope this helps at least a bit!
~Direct Variation When two variables are related in such a way that the ratio of their values always remains the same, the two variables are said to be in direct variation. In simpler terms, that means if A is always twice as much as B, then they directly vary. If a gallon of milk costs $3, and I buy 1 gallon, the total cost is $3.~
Answer:

Step-by-step explanation:
we have to divide the given distance by 3.
Then we will be able to find the distance between markers.
Given distance is

Since, there are three markers,
So, we have to divide this distance by 3
So, the distance between markers is-

So, the distance between marker is

Now, we have to convert this into mixed number.
Then, the distance is-

Multiply by the reciprocal by 3 and divide the common denominator by 14
A) 2/4 b) 6/8 c) 18/20. Is that what you are asking for?