The linear score is an exact weighted combination of input and bias. Every score in the table is recomputed from displayed rational values.
The score formula
The score is z=w x+b. Here w=1 and b=-2.
z=1⋅x−2
Why this is exact
The score is a weighted combination of the displayed input and bias. Each z value is a rational number, so no named boundary is needed yet.
zi=wxi+b
Summary
The recomputed scores are -2, -1, 0, and 1.
z=−2,−1,0,1