I didn't understand the graph x axis

Hello,
While the input X is 2D array, which values were used for the graph ?

In this graph the horizontal axis corresponds to x0 and the vertical axis to x1, each X data has 2 values as you can see, corresponding to x0 and x1. You map those X points in the graph using x0 and x1 and if the corresponding label y is 1 then you make it a red cross otherwise if 0 a hollow blue circle.

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I get it, Thank you very much !

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