### Home > CCA > Chapter 4 > Lesson 4.1.2 > Problem 4-28

4-28.

Examine the graphs of each relation below. Decide if each is a function. Then describe the domain and range of each. Homework Help ✎

Is there more than one output value for a single input value? If so, it is not a function.

Determine the possible

*x*-values to find the domain and the possible*y*-values to find the range.It is not a function.

R: − 3 ≤*x*≤ 3

Is there more than one output value for a single input value? If so, it is not a function.

Determine the possible

*x*-values to find the domain and the possible*y*-values to find the range.It is a function.

D: −2 ≤*x*≤ 3