Question

Decide whether the relation defined by the graph to the right defines a function,

and give the domain and range.
Does the graphed relation define a function?
ЛУ
10-
8-
Ο Νο
Yes
6-
4
What is the domain of the graphed relation?
2-
24
(Type your answer in interval notation)
What is the range of the graphed relation?
- 10 -8 -6 -4
La
1
Ha
Fo
4.
too
10
-2-
(Type your answer in interval notation)
-4
-6-
-8-
-10-

Answer 1

Given that the graph is not provided, I will answer the question in general terms.

To know if a relationship is or is not a function you have to check if for every value of the dependent variable there is associated only one value of the dependent variable.

The domain of a function is composed of all the possible values that variable x (the independent variable) can take.

The range of a function is composed of all the possible values that variable y (the dependent variable) can take. That is, all the values that f(x) can assume (see picture attached).