The simplest form is, <span>x-1 </span>
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1 is a whole and 1/2 is just a fraction
1 and 3 they share a relationship of +2, 3 and 6 share x2, 5 and 8 share +3, 7 and 21 share x3
The point where the two axes intersect (0,0) it's the point of origin.
