### Home > GB8I > Chapter 1 Unit 1 > Lesson INT1: 1.2.2 > Problem 1-47

1-47.

Which of the relationships below are functions? If a relationship is not a function, give a reason to support your conclusion.

There is more than one output value for some inputs; therefore, the relation is not a function.

**input****output**

It is a function. Every input had only one output even if it is the same output such as

**input****output**

There is more than one output value for . Is this relation a function?

It is a function.