The answer to the question
Alright, lets get started.
The given function is :

When we find the domain of any function, we consider the domian is set of input values for which function should remain real and defined.
In this given function , we have not given any points where function seems going undefined.
Hence the domain is : (-∞, +∞) : Answer
Hope it will help :)
Answer:
Variable rate of change.
Step-by-step explanation:
Plot the points and you'll see that the graph is not a straight line, therefore the rate of change is variable.
You add them and then divide by how many numbers there are.
a. (3+43)/2 = 23
b. 0
c. -1