Let f be a function with the domain {1, 2}. The graph of f is necessarily made up of exactly two points.

A. True
B. False

Question

Let f be a function with the domain {1, 2}. The graph of f is necessarily made up of exactly two points.

 		A.	True
 		B.	False

anonymous · Answer

false?

precal · Answer

a line should have at the very least two points according to Euclidean geometry.  Does 2 points represent a function?  I do not think so

anonymous · Answer

@precal  SO U AGREE?

anonymous · Answer

yep should have infinite points or calculus fails at the starting gate :D

anonymous · Answer

@precal  can u give @kevsturge  a medal

precal · Answer

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precal · Answer

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anonymous · Answer

So do you agree the answer is false then im just trying to calirfy because i need to get this particular question correct

anonymous · Answer

omg @kevsturge  is it false?

precal · Answer

why, why do you have to get it correct?  You learn alot when you do not get the solution correct?  I have a problem with the statement stating exactly 2 points, I have given you two examples to prove that it is not correct.

anonymous · Answer

ha ha ha are you convinced :D

anonymous · Answer

@kevsturge  @precal  i actually got it wrong it said it was true :/ hmm

precal · Answer

if you are doing an online course, that is unfortunate since you are not able to negotiate with a machine.  I am disputing the wording of the problem.  A function is a set of points that pass the vertical line test, I do not recall the definition of a function requiring a specific number of points.  You have to answer the question according to your tutorials, I have seen online questions not be accurate due to typos, etc.  Once again a live person, would have taken the above 2 examples and shown you were your logic failed.  A machine can only give full credit or no credit, it takes a human being to determine how much partial credit to award (if any).

anonymous · Answer

I disagree that it has two points. It might mean that it takes 2 or more points to draw but the work exactly is incorrect and I think that the question is worng

anonymous · Answer

Precal showed you two completely different functions starting and ending at the same two points. So there is no way we could define these using exactly 2 points!!!

precal · Answer

@kevsturge I think the wording of the question in wrong.  These are the limitations of technology.  This is why the human brain is more powerful.  We can think outside the box, the machine can only think in patterns (patterns humans allow it to think)

anonymous · Answer

I agree. Sorry for loosing you a point @sktjell