Recent content by Mr Indeterminate

Ok, so what your saying is that equation A cannot be rearranged into equation B. However, if you were just to start with equation B, would it be depicted with a vertical line?

So with equation A ##y=(x^2-1)/(x-1)## you say a hole is the appropriate depiction. Do you agree that equation B ##y(x-1)=(x^2-1)## has a vertical line?

Alright now that we are on the same page on that one. I'm going to come out and say that I don't agree with NATE MATE's argument. For equation B, if x=1 then y= 1 or 2 or 3 or -4 or 0.34928 or -200 ... basically its any number. Merriam-Webster defines indeterminate as "Having an infinite...

Is the method of inserting values for y to determine x not a valid method of graphing equations? I would read https://www.physicsforums.com/threads/graphing-a-strange-equation.912296/ before you answer that. Numerous senior forum members have agreed in the past that B does indeed have a...

Equality B absolutely has a vertical line! It can be graphed on a cartesian plane, by inserting values in for y and then solving for x: For instance, if y=3 then: 3(x-1)=x2-1 3x-3=x2-1 3x=x2-1+3 3x=x2+2 0=x2-3x+2 0=(x-1)(x-2) Thus x = 1 or 2 and so the co-ordinates (1,3) and (2,3) are...

Did you read #28?

Then how you reason that x(x-1)=0 isn't proof of 1=0 while in #7 it is?

I concede that "and" was inappropriate wording. However, I still think the 1=0 logic provided earlier in the thread is problematic. Any chance we could cover off on this before moving back the original question?

How would you approach plotting it on a Cartesian plane? Flip a coin, if heads plot (0,2), if tails plot (0,3)? That type of thinking seems very pre-Schrödinger's cat.

(Y-2)(Y-3)=0 thus Y=2 and Y=3 2=3?

Hi All, You've made quite clear to me that infinity isn't a real number because it hasn't been defined as one. However, what I really want to understand is why it wasn't included. Obviously if something nonsensical results of the inclusion then there is a reason to exclude it. jbriggs444...

Why is infinity not a number, while zero is?

Now I expect that most of you on this forum would be familiar with the equality between point nine reoccurring and one: 0.999...=1 If your not familiar please review https://en.wikipedia.org/wiki/0.999... Now this equality can be used to imply something else, which is rather heterodox...

While it doesn't offer a mathematical proof, how should one view 0/0? Is in undefined or is its result indeterminate?

The video explicitly assumes X ÷ Y x Y = X always, regardless of what values X and Y happen to be. Using that assumption, the video approaches the division of a non-zero by zero, through defining X = Non-Zero, Y = 0 and Non-Zero ÷ 0 = K. In this instance, it is concluded that K could not be...