Answer:
functions cant have the same x vaule
im not sure which is a "set" since all the numbers are all under the same line
(3,4) (4,5) (5,6) (6,7) would be function
(1,6) (1,7) (3,4) (2,8) wouldnt be a function because of the 1
It is in simplest form. Seven is a prime number and cannot be divided by any number but itself and one, so that means the fraction is in simplest form.
For this case we have the following function:

By definition we have that the average rate of change is given by:

We evaluate the function for the given interval:
For x = 0:

For x = 1:

Substituting values we have:

Rewriting we have:
Answer:
the average rate of change from x = 0 to x = 1 is:
11:30 subtracted by 8:05 = 3 hours and 25 minutes
25-3=22
22/2=11
11
11+3=14
Answer is 11 & 14