(Will medal and fan, so confused)
Of the following sets, which represents a function?

Situation A = {student's name, the student's favorite color}

Situation B = {student's name, the student's favorite math teacher}
A: Only A
B: Only B
C: Both A and B
D: Neither A nor B

Question

(Will medal and fan, so confused) 
Of the following sets, which represents a function?

Situation A = {student's name, the student's favorite color}

Situation B = {student's name, the student's favorite math teacher}
A: Only A
B: Only B
C: Both A and B
D: Neither A nor B

stacey · Answer

A function will have only one answer for each input, so as long as no two students have the same exact name, both should be a function.

princeharryyy · Answer

I don't agree with you @Stacey

angiedoesschool2275 · Answer

I first thought it was D but I checked and it was incorrect, but now I have no idea what it is...

princeharryyy · Answer

try going with A @Angiedoesschool2275 see if it works.

angiedoesschool2275 · Answer

Can you explain why it is correct? I want to know why it is, not just the answer.

princeharryyy · Answer

did it say right?

angiedoesschool2275 · Answer

I wanna learn why it is that answer, I'm not just gonna submit and be done with it :/

princeharryyy · Answer

I will explain it to you. First be sure if your answer i.e. what I told you is right.

angiedoesschool2275 · Answer

This is my last try I get..

princeharryyy · Answer

Ok. let's see what @Stacey  wrote. The definition she wrote is perfect. No doubts.

princeharryyy · Answer

but, she forgot something while solving the problem.

angiedoesschool2275 · Answer

Yeah, I agree with what she said earlier. To be honest, I was a bit confused on why D was incorrect since I think both solutions can have the same input..

stacey · Answer

A function will have one answer for each input, so suppose you put Mikey in as the student:
For Situation A you will get his favorite color, maybe blue. That is a single answer or response.
For Situation B you will get his favorite math teacher, maybe Mrs. Long. That is also a single answer or response.
Therefore, both are functions.

angiedoesschool2275 · Answer

But wouldn't there be a chance of the input amount repeating?

stacey · Answer

Actually there is, but unfortunately when people write these questions they often don't think of those things, and when students do think of those things, we are told that we are over-thinking the problem.

angiedoesschool2275 · Answer

Alright, thank you both for your help :3 I will be sure to say if it was correct or not, you both helped alot! ^-^ Have a wonderful day xP

angiedoesschool2275 · Answer

I was correct ;o; thank you again!!