Answer:
2) The domain would only include positive integers
Step-by-step explanation:
y cost for x person
x can't be negative or fraction.
Answer:
its 23xy3
Step-by-step explanation:
im dababy
Answer: -2.5
Step-by-step explanation:
The average can be found by adding up the numbers then dividing by how many numbers there are in this case there are two numbers.
-30+25=-5
-5/2 = -2.5
Answer:

Step-by-step explanation:
the minimum of f is for x = 1 and f(1)=0
f is decreasing for x<=1 and increasing for x>=1
so the domain is 

x>=1 so x is positive and we can take the square root
so 