Then $v_2 = 6 + 2(-\frac{45}{14}) = \frac{84 - 90}{14} = -\frac{6}{14} = -\frac{3}{7}$, and $v_3 = 11 + 3(-\frac{45}{14}) = \frac{154 - 135}{14} = \frac{19}{14}$.