Answer:
Explanation:
A.
35 dollars represents the cost of renting the coolers (I think it's a constant since it does not say it is the cost per cooler).
B.
0.50 cent represents the cost per water bottle in the function (the coefficient in front of b, the amount of water bottles being purchased).
C.
C is the total cost.
C = 0.50b + 35
D.
I'm not sure what this is asking. Y = 0.50x + 35's domain is all real numbers but I'm not sure what it means by "appropriate domain for the function" unless the problem is using the average statistics from actual high school football games based on how many water bottles are purchased or something else.
E.
The graph would be all real numbers unless I'm wrong. Which is very possible on d and e but I think I provided the correct info on the others.