![](https://q2a.cs.uni-kl.de/?qa=blob&qa_blobid=14313254212104399337)
While solving this question I have a doubt.
In the third step why x1 is selected as pivot and not y1.
I am confused as per Bland's rule we have to select the first one as pivot and here y1 is also fulfilling the criteria, for setting y2 = -2 we can select y1 as pivot. (Depicted below)
![](https://q2a.cs.uni-kl.de/?qa=blob&qa_blobid=11979349948083413476)
Please explain if I am missing something.