ANSWER

EXPLANATION
Let

be the equation.
We can choose any two ordered pairs to determine the equation of the relation.

We find m using the formula;


The equation becomes

When x=6, y=15.
This implies that,




The equation of the relation is therefore,

Answer:
30 days (do correct me if I'm wrong haha)
Step-by-step explanation:
5 gallons = 2 days
75 gallons = 30 days
75÷5=15 15×2=30
Answer:
I may not be correct on this but I believe this is either Linear Function or other
Step-by-step explanation:
I was doing a bit of research and Linear Function or other fit best for this graph
I think it's 1 3/4. I had one similar earlier.