### Home > AC > Chapter 11 > Lesson 11.2.1 > Problem 11-86

11-86.

Which of the relations below are functions?

**Justify**your answer. Homework Help ✎

Do all of these graphs have one output value for every input value?

11-86.

Which of the relations below are functions?

**Justify**your answer. Homework Help ✎

Do all of these graphs have one output value for every input value?