Answer:
Is there a proportional relationship between the number of scoops and the number of dogs?
No.
Explanation:
A proportional relationship is something like:
y = k*x
Here y can represent the number of scoops of dog food, and x the number of dogs.
First, we know that for 4 dogs he prepares 8 scoops of dog food, then:
8 = k*4
If the relationship is proportional, then we should have a similar equation for the case of 6 dogs, where he prepares 15 scoops of dog food:
15 = k*6
So if we have the same k in both equations, then there is a proportional relationship between the number of scoops and the number of dogs.
In the first equation we have:
8 = k*4
8/4 = k
2 = k
And in the second equation we have:
15 = k*6
15/6 = k
2.5 = k
The values of k are different, so no, there isn't a proportional relationship between the number of scoops and the number of dogs.