### Home > AC > Chapter 12 > Lesson 12.4.2 > Problem 12-79

12-79.

What are all the possible values of *x*, or the domain of the function?

What are all the possible values of *y*, or the range of the function?

D: *x* ≤ 2

R: *y* ≤ 4

Does each value of *x* have only one *y*-value?