Isae says that a step graph does not represent a function because the graph is not connected. alex says that it does represent a function because there is only one y for every x. who is correct and why? a. misae is correct because she is applying the definition of a function. c. neither is correct. b. alex is correct because he is applying the definition of a function.

b. Alex is correct because he is applying the definition of a function.

Step-by-step explanation:

Let's see the definition of function.

A function relates each element of a set  with exactly one element of another set.

A step function is a function but it disconnect in some interval but still it is a function since it has unique out put for each input.

Therefore, Alex  is correct because he is applying the definition of function.

Hope you will understand the concept.

Thank you.