### Home > CC3MN > Chapter 9 > Lesson 9.1.3 > Problem 9-42

9-42.

Identify which of the relationships shown below is not a function. Explain your reasoning.

A relationship is a function only if there is no more than one -value for each

*-value. Check the*

*-values in both tables to see to find any that appear multiple times. When you find a value for*

*that appears multiple times, check the corresponding*

*-values. If the*

*-values are different, then the relationship is not a function.*

Relationship (b) is not a function. When equals

*can equal*