Question

Is the relation shown in the arrow diagram a function?

Choose the correct response.


Yes. Every unique input has a unique output.


Yes. Every input maps to more than one output.


No. Not every input maps to an output.


No. Not every unique input maps to only one unique output.

Answer 1

Yes. Every unique input has a unique output.

Explanation:

Since every input has a different output, therefore it's a function. It's not a function when the input have more than 1 output. When graphing, make sure you take the vertical line test to see whether or not the graph is a function.