Choose the option that best describes how to determine if a Item 1

relation is a function.



(1 point)



Item 2
Item 3

Check that for each value of x, there is only one value of
y.






Check that for each value of y, there is only one value of
x.



Check that for each output, there is only one input.
Check that a horizontal line could move across the y-axis
and only intersect the graph of the relation in one spot at
a time.

The correct option is: Check that for each value of x, there is only one value of y.

The option that best describes how to determine if a relation is a function is:

Check that for each value of x, there is only one value of y.

The correct option that describes how to determine if a relation is a function is to check that for each value of x, there is only one value of y. To do this, you need to examine the given relation and make sure that for every x-value, there is a unique corresponding y-value. If there is more than one y-value for any x-value, then the relation is not a function. This can be checked by inspecting the given relation or plotting it on a graph and verifying that there are no vertical lines passing through more than one point on the graph.