11 λ
10 λ
9 λ
8 λ  EF  DE
7  ⟵  9  7  −\frac{5}{2} ⟵ 11 7 \frac{6}{4} λ
6 λ  CD
5 ⟵ 11 13 0 λ
4 λ  FA
3  ⟵  9  2  0  λ
2 λ  AB  BC
1  ⟵  3  7  −\frac{5}{2} ⟵ 5 7 \frac{6}{4} λ
0 λ
y_{max} x_{min}  \frac{1}{m}