CPM Homework Banner
1-47.

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

  1. graph a

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

  1. input

    output

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

  1. input

    output 

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

  1. graph d

It is a function.